Code cleanup: srand, PVS warnings (#1974)

* Remove srand invocation

* PVS High priority fixes

* PVS High errors part 2

* Furi: heap tracing inheritance

* Furi add __builtin_unreachable to furi_thread_catch

applications/main/bad_usb/bad_usb_script.c

@@ -338,10 +338,6 @@ static int32_t
         furi_hal_hid_kb_release(key);
         return (0);
     }
-    if(error != NULL) {
-        strncpy(error, "Unknown error", error_len);
-    }
-    return SCRIPT_STATE_ERROR;
 }
 
 static bool ducky_set_usb_id(BadUsbScript* bad_usb, const char* line) {
@@ -656,7 +652,7 @@ static int32_t bad_usb_worker(void* context) {
 BadUsbScript* bad_usb_script_open(FuriString* file_path) {
     furi_assert(file_path);
 
-    BadUsbScript* bad_usb = malloc(sizeof(BadUsbScript));
+    BadUsbScript* bad_usb = malloc(sizeof(BadUsbScript)); //-V773
     bad_usb->file_path = furi_string_alloc();
     furi_string_set(bad_usb->file_path, file_path);
 

applications/main/fap_loader/fap_loader_app.c

@@ -155,7 +155,7 @@ static bool fap_loader_select_app(FapLoader* loader) {
 }
 
 static FapLoader* fap_loader_alloc(const char* path) {
-    FapLoader* loader = malloc(sizeof(FapLoader));
+    FapLoader* loader = malloc(sizeof(FapLoader)); //-V773
     loader->fap_path = furi_string_alloc_set(path);
     loader->storage = furi_record_open(RECORD_STORAGE);
     loader->dialogs = furi_record_open(RECORD_DIALOGS);

applications/main/gpio/usb_uart_bridge.c

@@ -184,7 +184,7 @@ static int32_t usb_uart_worker(void* context) {
     while(1) {
         uint32_t events =
             furi_thread_flags_wait(WORKER_ALL_RX_EVENTS, FuriFlagWaitAny, FuriWaitForever);
-        furi_check((events & FuriFlagError) == 0);
+        furi_check(!(events & FuriFlagError));
         if(events & WorkerEvtStop) break;
         if(events & WorkerEvtRxDone) {
             size_t len = furi_stream_buffer_receive(
@@ -288,7 +288,7 @@ static int32_t usb_uart_tx_thread(void* context) {
     while(1) {
         uint32_t events =
             furi_thread_flags_wait(WORKER_ALL_TX_EVENTS, FuriFlagWaitAny, FuriWaitForever);
-        furi_check((events & FuriFlagError) == 0);
+        furi_check(!(events & FuriFlagError));
         if(events & WorkerEvtTxStop) break;
         if(events & WorkerEvtCdcRx) {
             furi_check(furi_mutex_acquire(usb_uart->usb_mutex, FuriWaitForever) == FuriStatusOk);

applications/main/lfrfid/lfrfid.c

@@ -32,7 +32,7 @@ static void rpc_command_callback(RpcAppSystemEvent rpc_event, void* context) {
 }
 
 static LfRfid* lfrfid_alloc() {
-    LfRfid* lfrfid = malloc(sizeof(LfRfid));
+    LfRfid* lfrfid = malloc(sizeof(LfRfid)); //-V773
 
     lfrfid->storage = furi_record_open(RECORD_STORAGE);
     lfrfid->dialogs = furi_record_open(RECORD_DIALOGS);

applications/main/nfc/scenes/nfc_scene_mf_classic_read_success.c

@@ -24,7 +24,7 @@ void nfc_scene_mf_classic_read_success_on_enter(void* context) {
     widget_add_button_element(
         widget, GuiButtonTypeRight, "More", nfc_scene_mf_classic_read_success_widget_callback, nfc);
 
-    FuriString* temp_str;
+    FuriString* temp_str = NULL;
     if(furi_string_size(nfc->dev->dev_data.parsed_data)) {
         temp_str = furi_string_alloc_set(nfc->dev->dev_data.parsed_data);
     } else {

applications/main/nfc/scenes/nfc_scene_mf_ultralight_read_success.c

@@ -31,7 +31,7 @@ void nfc_scene_mf_ultralight_read_success_on_enter(void* context) {
         nfc_scene_mf_ultralight_read_success_widget_callback,
         nfc);
 
-    FuriString* temp_str;
+    FuriString* temp_str = NULL;
     if(furi_string_size(nfc->dev->dev_data.parsed_data)) {
         temp_str = furi_string_alloc_set(nfc->dev->dev_data.parsed_data);
     } else {

applications/main/subghz/subghz_i.c

@@ -513,12 +513,6 @@ bool subghz_path_is_file(FuriString* path) {
 }
 
 uint32_t subghz_random_serial(void) {
-    static bool rand_generator_inited = false;
-
-    if(!rand_generator_inited) {
-        srand(DWT->CYCCNT);
-        rand_generator_inited = true;
-    }
     return (uint32_t)rand();
 }
 

applications/main/u2f/u2f_hid.c

@@ -203,7 +203,7 @@ static int32_t u2f_hid_worker(void* context) {
             WorkerEvtStop | WorkerEvtConnect | WorkerEvtDisconnect | WorkerEvtRequest,
             FuriFlagWaitAny,
             FuriWaitForever);
-        furi_check((flags & FuriFlagError) == 0);
+        furi_check(!(flags & FuriFlagError));
         if(flags & WorkerEvtStop) break;
         if(flags & WorkerEvtConnect) {
             u2f_set_state(u2f_hid->u2f_instance, 1);

applications/plugins/snake_game/snake_game.c

@@ -318,7 +318,6 @@ static void
 
 int32_t snake_game_app(void* p) {
     UNUSED(p);
-    srand(DWT->CYCCNT);
 
     FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(SnakeEvent));
 

applications/plugins/weather_station/protocols/ambient_weather.c

@@ -200,7 +200,6 @@ void ws_protocol_decoder_ambient_weather_feed(void* context, bool level, uint32_
            ((instance->decoder.decode_data & AMBIENT_WEATHER_PACKET_HEADER_MASK) ==
             AMBIENT_WEATHER_PACKET_HEADER_2)) {
             if(ws_protocol_ambient_weather_check_crc(instance)) {
-                instance->decoder.decode_data = instance->decoder.decode_data;
                 instance->generic.data = instance->decoder.decode_data;
                 instance->generic.data_count_bit =
                     ws_protocol_ambient_weather_const.min_count_bit_for_found;

applications/services/cli/cli_command_gpio.c

@@ -61,15 +61,20 @@ static void gpio_print_pins(void) {
     }
 }
 
-typedef enum { OK, ERR_CMD_SYNTAX, ERR_PIN, ERR_VALUE } GpioParseError;
+typedef enum {
+    GpioParseReturnOk,
+    GpioParseReturnCmdSyntaxError,
+    GpioParseReturnPinError,
+    GpioParseReturnValueError
+} GpioParseReturn;
 
-static GpioParseError gpio_command_parse(FuriString* args, size_t* pin_num, uint8_t* value) {
+static GpioParseReturn gpio_command_parse(FuriString* args, size_t* pin_num, uint8_t* value) {
     FuriString* pin_name;
     pin_name = furi_string_alloc();
 
     size_t ws = furi_string_search_char(args, ' ');
     if(ws == FURI_STRING_FAILURE) {
-        return ERR_CMD_SYNTAX;
+        return GpioParseReturnCmdSyntaxError;
     }
 
     furi_string_set_n(pin_name, args, 0, ws);
@@ -78,7 +83,7 @@ static GpioParseError gpio_command_parse(FuriString* args, size_t* pin_num, uint
 
     if(!pin_name_to_int(pin_name, pin_num)) {
         furi_string_free(pin_name);
-        return ERR_PIN;
+        return GpioParseReturnPinError;
     }
 
     furi_string_free(pin_name);
@@ -88,10 +93,10 @@ static GpioParseError gpio_command_parse(FuriString* args, size_t* pin_num, uint
     } else if(!furi_string_cmp(args, "1")) {
         *value = 1;
     } else {
-        return ERR_VALUE;
+        return GpioParseReturnValueError;
     }
 
-    return OK;
+    return GpioParseReturnOk;
 }
 
 void cli_command_gpio_mode(Cli* cli, FuriString* args, void* context) {
@@ -101,15 +106,15 @@ void cli_command_gpio_mode(Cli* cli, FuriString* args, void* context) {
     size_t num = 0;
     uint8_t value = 255;
 
-    GpioParseError err = gpio_command_parse(args, &num, &value);
+    GpioParseReturn err = gpio_command_parse(args, &num, &value);
 
-    if(ERR_CMD_SYNTAX == err) {
+    if(err == GpioParseReturnCmdSyntaxError) {
         cli_print_usage("gpio mode", "<pin_name> <0|1>", furi_string_get_cstr(args));
         return;
-    } else if(ERR_PIN == err) {
+    } else if(err == GpioParseReturnPinError) {
         gpio_print_pins();
         return;
-    } else if(ERR_VALUE == err) {
+    } else if(err == GpioParseReturnValueError) {
         printf("Value is invalid. Enter 1 for input or 0 for output");
         return;
     }
@@ -161,15 +166,15 @@ void cli_command_gpio_set(Cli* cli, FuriString* args, void* context) {
 
     size_t num = 0;
     uint8_t value = 0;
-    GpioParseError err = gpio_command_parse(args, &num, &value);
+    GpioParseReturn err = gpio_command_parse(args, &num, &value);
 
-    if(ERR_CMD_SYNTAX == err) {
+    if(err == GpioParseReturnCmdSyntaxError) {
         cli_print_usage("gpio set", "<pin_name> <0|1>", furi_string_get_cstr(args));
         return;
-    } else if(ERR_PIN == err) {
+    } else if(err == GpioParseReturnPinError) {
         gpio_print_pins();
         return;
-    } else if(ERR_VALUE == err) {
+    } else if(err == GpioParseReturnValueError) {
         printf("Value is invalid. Enter 1 for high or 0 for low");
         return;
     }

applications/services/cli/cli_vcp.c

@@ -103,7 +103,7 @@ static int32_t vcp_worker(void* context) {
     while(1) {
         uint32_t flags =
             furi_thread_flags_wait(VCP_THREAD_FLAG_ALL, FuriFlagWaitAny, FuriWaitForever);
-        furi_assert((flags & FuriFlagError) == 0);
+        furi_assert(!(flags & FuriFlagError));
 
         // VCP session opened
         if(flags & VcpEvtConnect) {
@@ -303,7 +303,7 @@ static void vcp_on_cdc_control_line(void* context, uint8_t state) {
 static void vcp_on_cdc_rx(void* context) {
     UNUSED(context);
     uint32_t ret = furi_thread_flags_set(furi_thread_get_id(vcp->thread), VcpEvtRx);
-    furi_check((ret & FuriFlagError) == 0);
+    furi_check(!(ret & FuriFlagError));
 }
 
 static void vcp_on_cdc_tx_complete(void* context) {

applications/services/crypto/crypto_cli.c

@@ -167,7 +167,7 @@ void crypto_cli_decrypt(Cli* cli, FuriString* args) {
 void crypto_cli_has_key(Cli* cli, FuriString* args) {
     UNUSED(cli);
     int key_slot = 0;
-    uint8_t iv[16];
+    uint8_t iv[16] = {0};
 
     do {
         if(!args_read_int_and_trim(args, &key_slot) || !(key_slot > 0 && key_slot <= 100)) {
@@ -249,7 +249,7 @@ void crypto_cli_store_key(Cli* cli, FuriString* args) {
         }
 
         if(key_slot > 0) {
-            uint8_t iv[16];
+            uint8_t iv[16] = {0};
             if(key_slot > 1) {
                 if(!furi_hal_crypto_store_load_key(key_slot - 1, iv)) {
                     printf(

applications/services/gui/gui.c

@@ -436,7 +436,7 @@ void gui_add_framebuffer_callback(Gui* gui, GuiCanvasCommitCallback callback, vo
     const CanvasCallbackPair p = {callback, context};
 
     gui_lock(gui);
-    furi_assert(CanvasCallbackPairArray_count(gui->canvas_callback_pair, p) == 0);
+    furi_assert(!CanvasCallbackPairArray_count(gui->canvas_callback_pair, p));
     CanvasCallbackPairArray_push_back(gui->canvas_callback_pair, p);
     gui_unlock(gui);
 

applications/services/gui/modules/file_browser_worker.c

@@ -359,7 +359,7 @@ static int32_t browser_worker(void* context) {
 
 BrowserWorker*
     file_browser_worker_alloc(FuriString* path, const char* filter_ext, bool skip_assets) {
-    BrowserWorker* browser = malloc(sizeof(BrowserWorker));
+    BrowserWorker* browser = malloc(sizeof(BrowserWorker)); //-V773
 
     idx_last_array_init(browser->idx_last);
 

applications/services/gui/modules/widget_elements/widget_element_button.c

@@ -60,7 +60,7 @@ WidgetElement* widget_element_button_create(
     ButtonCallback callback,
     void* context) {
     // Allocate and init model
-    GuiButtonModel* model = malloc(sizeof(GuiButtonModel));
+    GuiButtonModel* model = malloc(sizeof(GuiButtonModel)); //-V773
     model->button_type = button_type;
     model->callback = callback;
     model->context = context;

applications/services/gui/view_dispatcher.c

@@ -23,7 +23,7 @@ void view_dispatcher_free(ViewDispatcher* view_dispatcher) {
         gui_remove_view_port(view_dispatcher->gui, view_dispatcher->view_port);
     }
     // Crash if not all views were freed
-    furi_assert(ViewDict_size(view_dispatcher->views) == 0);
+    furi_assert(!ViewDict_size(view_dispatcher->views));
 
     ViewDict_clear(view_dispatcher->views);
     // Free ViewPort
@@ -157,7 +157,7 @@ void view_dispatcher_remove_view(ViewDispatcher* view_dispatcher, uint32_t view_
         view_dispatcher->ongoing_input_view = NULL;
     }
     // Remove view
-    ViewDict_erase(view_dispatcher->views, view_id);
+    furi_check(ViewDict_erase(view_dispatcher->views, view_id));
 
     view_set_update_callback(view, NULL);
     view_set_update_callback_context(view, NULL);

applications/services/loader/loader.c

@@ -269,7 +269,7 @@ static void loader_thread_state_callback(FuriThreadState thread_state, void* con
         event.type = LoaderEventTypeApplicationStarted;
         furi_pubsub_publish(loader_instance->pubsub, &event);
 
-        if(!loader_instance->application->flags & FlipperApplicationFlagInsomniaSafe) {
+        if(!(loader_instance->application->flags & FlipperApplicationFlagInsomniaSafe)) {
             furi_hal_power_insomnia_enter();
         }
     } else if(thread_state == FuriThreadStateStopped) {
@@ -284,7 +284,7 @@ static void loader_thread_state_callback(FuriThreadState thread_state, void* con
             loader_instance->application_arguments = NULL;
         }
 
-        if(!loader_instance->application->flags & FlipperApplicationFlagInsomniaSafe) {
+        if(!(loader_instance->application->flags & FlipperApplicationFlagInsomniaSafe)) {
             furi_hal_power_insomnia_exit();
         }
         loader_unlock(instance);

applications/services/storage/storage_cli.c

@@ -275,7 +275,7 @@ static void storage_cli_read_chunks(Cli* cli, FuriString* path, FuriString* args
     uint32_t buffer_size;
     int parsed_count = sscanf(furi_string_get_cstr(args), "%lu", &buffer_size);
 
-    if(parsed_count == EOF || parsed_count != 1) {
+    if(parsed_count != 1) {
         storage_cli_print_usage();
     } else if(storage_file_open(file, furi_string_get_cstr(path), FSAM_READ, FSOM_OPEN_EXISTING)) {
         uint64_t file_size = storage_file_size(file);
@@ -315,7 +315,7 @@ static void storage_cli_write_chunk(Cli* cli, FuriString* path, FuriString* args
     uint32_t buffer_size;
     int parsed_count = sscanf(furi_string_get_cstr(args), "%lu", &buffer_size);
 
-    if(parsed_count == EOF || parsed_count != 1) {
+    if(parsed_count != 1) {
         storage_cli_print_usage();
     } else {
         if(storage_file_open(file, furi_string_get_cstr(path), FSAM_WRITE, FSOM_OPEN_APPEND)) {

applications/services/storage/storage_external_api.c

@@ -545,8 +545,8 @@ static FS_Error
 
 FS_Error storage_common_merge(Storage* storage, const char* old_path, const char* new_path) {
     FS_Error error;
-    const char* new_path_tmp;
+    const char* new_path_tmp = NULL;
-    FuriString* new_path_next;
+    FuriString* new_path_next = NULL;
     new_path_next = furi_string_alloc();
 
     FileInfo fileinfo;

firmware/targets/f7/ble_glue/gap.c

@@ -179,7 +179,7 @@ SVCCTL_UserEvtFlowStatus_t SVCCTL_App_Notification(void* pckt) {
 
         case EVT_BLUE_GAP_PASS_KEY_REQUEST: {
             // Generate random PIN code
-            uint32_t pin = rand() % 999999;
+            uint32_t pin = rand() % 999999; //-V1064
             aci_gap_pass_key_resp(gap->service.connection_handle, pin);
             if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagLock)) {
                 FURI_LOG_I(TAG, "Pass key request event. Pin: ******");
@@ -478,7 +478,6 @@ bool gap_init(GapConfig* config, GapEventCallback on_event_cb, void* context) {
 
     gap = malloc(sizeof(Gap));
     gap->config = config;
-    srand(DWT->CYCCNT);
     // Create advertising timer
     gap->advertise_timer = furi_timer_alloc(gap_advetise_timer_callback, FuriTimerTypeOnce, NULL);
     // Initialization of GATT & GAP layer

firmware/targets/f7/furi_hal/furi_hal_crypto.c

@@ -91,7 +91,7 @@ bool furi_hal_crypto_verify_key(uint8_t key_slot) {
     uint8_t keys_nb = 0;
     uint8_t valid_keys_nb = 0;
     uint8_t last_valid_slot = ENCLAVE_FACTORY_KEY_SLOTS;
-    uint8_t empty_iv[16];
+    uint8_t empty_iv[16] = {0};
     furi_hal_crypto_verify_enclave(&keys_nb, &valid_keys_nb);
     if(key_slot <= ENCLAVE_FACTORY_KEY_SLOTS) { // It's a factory key
         if(key_slot > keys_nb) return false;

furi/core/check.h

@@ -46,7 +46,7 @@ FURI_NORETURN void __furi_halt();
 /** Check condition and crash if check failed */
 #define furi_check(__e)                          \
     do {                                         \
-        if((__e) == 0) {                         \
+        if(!(__e)) {                             \
             furi_crash("furi_check failed\r\n"); \
         }                                        \
     } while(0)
@@ -55,7 +55,7 @@ FURI_NORETURN void __furi_halt();
 #ifdef FURI_DEBUG
 #define furi_assert(__e)                          \
     do {                                          \
-        if((__e) == 0) {                          \
+        if(!(__e)) {                              \
             furi_crash("furi_assert failed\r\n"); \
         }                                         \
     } while(0)

furi/core/event_flag.c

@@ -25,7 +25,7 @@ uint32_t furi_event_flag_set(FuriEventFlag* instance, uint32_t flags) {
     uint32_t rflags;
     BaseType_t yield;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         yield = pdFALSE;
         if(xEventGroupSetBitsFromISR(hEventGroup, (EventBits_t)flags, &yield) == pdFAIL) {
             rflags = (uint32_t)FuriStatusErrorResource;
@@ -48,7 +48,7 @@ uint32_t furi_event_flag_clear(FuriEventFlag* instance, uint32_t flags) {
     EventGroupHandle_t hEventGroup = (EventGroupHandle_t)instance;
     uint32_t rflags;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         rflags = xEventGroupGetBitsFromISR(hEventGroup);
 
         if(xEventGroupClearBitsFromISR(hEventGroup, (EventBits_t)flags) == pdFAIL) {
@@ -73,7 +73,7 @@ uint32_t furi_event_flag_get(FuriEventFlag* instance) {
     EventGroupHandle_t hEventGroup = (EventGroupHandle_t)instance;
     uint32_t rflags;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         rflags = xEventGroupGetBitsFromISR(hEventGroup);
     } else {
         rflags = xEventGroupGetBits(hEventGroup);

furi/core/memmgr_heap.c

@@ -150,8 +150,7 @@ void memmgr_heap_disable_thread_trace(FuriThreadId thread_id) {
     vTaskSuspendAll();
     {
         memmgr_heap_thread_trace_depth++;
-        furi_check(MemmgrHeapThreadDict_get(memmgr_heap_thread_dict, (uint32_t)thread_id) != NULL);
+        furi_check(MemmgrHeapThreadDict_erase(memmgr_heap_thread_dict, (uint32_t)thread_id));
-        MemmgrHeapThreadDict_erase(memmgr_heap_thread_dict, (uint32_t)thread_id);
         memmgr_heap_thread_trace_depth--;
     }
     (void)xTaskResumeAll();
@@ -212,7 +211,8 @@ static inline void traceFREE(void* pointer, size_t size) {
         MemmgrHeapAllocDict_t* alloc_dict =
             MemmgrHeapThreadDict_get(memmgr_heap_thread_dict, (uint32_t)thread_id);
         if(alloc_dict) {
-            MemmgrHeapAllocDict_erase(*alloc_dict, (uint32_t)pointer);
+            // In some cases thread may want to release memory that was not allocated by it
+            (void)MemmgrHeapAllocDict_erase(*alloc_dict, (uint32_t)pointer);
         }
         memmgr_heap_thread_trace_depth--;
     }

furi/core/mutex.c

@@ -45,7 +45,7 @@ FuriStatus furi_mutex_acquire(FuriMutex* instance, uint32_t timeout) {
 
     stat = FuriStatusOk;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         stat = FuriStatusErrorISR;
     } else if(hMutex == NULL) {
         stat = FuriStatusErrorParameter;
@@ -85,7 +85,7 @@ FuriStatus furi_mutex_release(FuriMutex* instance) {
 
     stat = FuriStatusOk;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         stat = FuriStatusErrorISR;
     } else if(hMutex == NULL) {
         stat = FuriStatusErrorParameter;
@@ -111,7 +111,7 @@ FuriThreadId furi_mutex_get_owner(FuriMutex* instance) {
 
     hMutex = (SemaphoreHandle_t)((uint32_t)instance & ~1U);
 
-    if((FURI_IS_IRQ_MODE() != 0U) || (hMutex == NULL)) {
+    if((FURI_IS_IRQ_MODE()) || (hMutex == NULL)) {
         owner = 0;
     } else {
         owner = (FuriThreadId)xSemaphoreGetMutexHolder(hMutex);

furi/core/semaphore.c

@@ -45,7 +45,7 @@ FuriStatus furi_semaphore_acquire(FuriSemaphore* instance, uint32_t timeout) {
 
     stat = FuriStatusOk;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         if(timeout != 0U) {
             stat = FuriStatusErrorParameter;
         } else {
@@ -80,7 +80,7 @@ FuriStatus furi_semaphore_release(FuriSemaphore* instance) {
 
     stat = FuriStatusOk;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         yield = pdFALSE;
 
         if(xSemaphoreGiveFromISR(hSemaphore, &yield) != pdTRUE) {
@@ -104,7 +104,7 @@ uint32_t furi_semaphore_get_count(FuriSemaphore* instance) {
     SemaphoreHandle_t hSemaphore = (SemaphoreHandle_t)instance;
     uint32_t count;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         count = (uint32_t)uxSemaphoreGetCountFromISR(hSemaphore);
     } else {
         count = (uint32_t)uxSemaphoreGetCount(hSemaphore);

furi/core/stream_buffer.c

@@ -23,7 +23,7 @@ size_t furi_stream_buffer_send(
     uint32_t timeout) {
     size_t ret;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         BaseType_t yield;
         ret = xStreamBufferSendFromISR(stream_buffer, data, length, &yield);
         portYIELD_FROM_ISR(yield);
@@ -41,7 +41,7 @@ size_t furi_stream_buffer_receive(
     uint32_t timeout) {
     size_t ret;
 
-    if(FURI_IS_IRQ_MODE() != 0U) {
+    if(FURI_IS_IRQ_MODE()) {
         BaseType_t yield;
         ret = xStreamBufferReceiveFromISR(stream_buffer, data, length, &yield);
         portYIELD_FROM_ISR(yield);

furi/core/string.c

@@ -29,13 +29,13 @@ FuriString* furi_string_alloc() {
 }
 
 FuriString* furi_string_alloc_set(const FuriString* s) {
-    FuriString* string = malloc(sizeof(FuriString));
+    FuriString* string = malloc(sizeof(FuriString)); //-V773
     string_init_set(string->string, s->string);
     return string;
 }
 
 FuriString* furi_string_alloc_set_str(const char cstr[]) {
-    FuriString* string = malloc(sizeof(FuriString));
+    FuriString* string = malloc(sizeof(FuriString)); //-V773
     string_init_set(string->string, cstr);
     return string;
 }

furi/core/thread.c

@@ -50,6 +50,7 @@ static int32_t __furi_thread_stdout_flush(FuriThread* thread);
 __attribute__((__noreturn__)) void furi_thread_catch() {
     asm volatile("nop"); // extra magic
     furi_crash("You are doing it wrong");
+    __builtin_unreachable();
 }
 
 static void furi_thread_set_state(FuriThread* thread, FuriThreadState state) {
@@ -112,6 +113,12 @@ FuriThread* furi_thread_alloc() {
     FuriThread* thread = malloc(sizeof(FuriThread));
     thread->output.buffer = furi_string_alloc();
     thread->is_service = false;
+
+    if(furi_thread_get_current_id()) {
+        FuriThread* parent = pvTaskGetThreadLocalStoragePointer(NULL, 0);
+        if(parent) thread->heap_trace_enabled = parent->heap_trace_enabled;
+    }
+
     return thread;
 }
 

lib/flipper_format/flipper_format_stream.c

@@ -313,7 +313,7 @@ bool flipper_format_stream_write_value_line(Stream* stream, FlipperStreamWriteDa
                     furi_crash("Unknown FF type");
                 }
 
-                if((size_t)(i + 1) < write_data->data_size) {
+                if(((size_t)i + 1) < write_data->data_size) {
                     furi_string_cat(value, " ");
                 }
 

lib/infrared/encoder_decoder/common/infrared_common_decoder.c

@@ -85,8 +85,8 @@ static InfraredStatus infrared_common_decode_bits(InfraredCommonDecoder* decoder
         if(timings->min_split_time && !level) {
             if(timing > timings->min_split_time) {
                 /* long low timing - check if we're ready for any of protocol modification */
-                for(size_t i = 0; decoder->protocol->databit_len[i] &&
+                for(size_t i = 0; i < COUNT_OF(decoder->protocol->databit_len) &&
-                                  (i < COUNT_OF(decoder->protocol->databit_len));
+                                  decoder->protocol->databit_len[i];
                     ++i) {
                     if(decoder->protocol->databit_len[i] == decoder->databit_cnt) {
                         return InfraredStatusReady;
@@ -199,7 +199,7 @@ InfraredMessage* infrared_common_decoder_check_ready(InfraredCommonDecoder* deco
     bool found_length = false;
 
     for(size_t i = 0;
-        decoder->protocol->databit_len[i] && (i < COUNT_OF(decoder->protocol->databit_len));
+        i < COUNT_OF(decoder->protocol->databit_len) && decoder->protocol->databit_len[i];
         ++i) {
         if(decoder->protocol->databit_len[i] == decoder->databit_cnt) {
             found_length = true;

lib/lfrfid/lfrfid_worker.c

@@ -140,9 +140,8 @@ size_t lfrfid_worker_dict_get_data_size(LFRFIDWorker* worker, LFRFIDProtocol pro
 
 static int32_t lfrfid_worker_thread(void* thread_context) {
     LFRFIDWorker* worker = thread_context;
-    bool running = true;
 
-    while(running) {
+    while(true) {
         uint32_t flags = furi_thread_flags_wait(LFRFIDEventAll, FuriFlagWaitAny, FuriWaitForever);
         if(flags != FuriFlagErrorTimeout) {
             // stop thread

lib/print/printf_tiny.c

@@ -541,7 +541,7 @@ static size_t _etoa(
     exp2 = (int)(expval * 3.321928094887362 + 0.5);
     const double z = expval * 2.302585092994046 - exp2 * 0.6931471805599453;
     const double z2 = z * z;
-    conv.U = (uint64_t)(exp2 + 1023) << 52U;
+    conv.U = ((uint64_t)exp2 + 1023) << 52U;
     // compute exp(z) using continued fractions, see https://en.wikipedia.org/wiki/Exponential_function#Continued_fractions_for_ex
     conv.F *= 1 + 2 * z / (2 - z + (z2 / (6 + (z2 / (10 + z2 / 14)))));
     // correct for rounding errors

lib/subghz/protocols/power_smart.c

@@ -312,7 +312,6 @@ void subghz_protocol_decoder_power_smart_feed(
         if((instance->decoder.decode_data & POWER_SMART_PACKET_HEADER_MASK) ==
            POWER_SMART_PACKET_HEADER) {
             if(subghz_protocol_power_smart_chek_valid(instance->decoder.decode_data)) {
-                instance->decoder.decode_data = instance->decoder.decode_data;
                 instance->generic.data = instance->decoder.decode_data;
                 instance->generic.data_count_bit =
                     subghz_protocol_power_smart_const.min_count_bit_for_found;

lib/subghz/subghz_keystore.c

@@ -464,7 +464,7 @@ bool subghz_keystore_raw_encrypted_save(
             }
             stream_write_cstring(output_stream, encrypted_line);
 
-        } while(ret > 0 && result);
+        } while(result);
 
         flipper_format_free(output_flipper_format);
 

lib/toolbox/random_name.c

@@ -5,12 +5,6 @@
 #include <furi.h>
 
 void set_random_name(char* name, uint8_t max_name_size) {
-    static bool rand_generator_inited = false;
-
-    if(!rand_generator_inited) {
-        srand(DWT->CYCCNT);
-        rand_generator_inited = true;
-    }
     const char* prefix[] = {
         "ancient",     "hollow",    "strange",    "disappeared", "unknown",
         "unthinkable", "unnamable", "nameless",   "my",          "concealed",