diff --git a/rtengine/EdgePreservingDecomposition.cc b/rtengine/EdgePreservingDecomposition.cc
index 14a6398cc..38267e957 100644
--- a/rtengine/EdgePreservingDecomposition.cc
+++ b/rtengine/EdgePreservingDecomposition.cc
@@ -381,7 +381,10 @@ bool MultiDiagonalSymmetricMatrix::CreateIncompleteCholeskyFactorization(int Max
 		}
 		if(UNLIKELY(d[j] == 0.0f)){
 			printf("Error in MultiDiagonalSymmetricMatrix::CreateIncompleteCholeskyFactorization: division by zero. Matrix not decomposable.\n");
-			delete ic;
+			delete ic;
+			delete[] DiagMap;
+			delete[] MaxIndizes;
+			delete[] findmap;
 			return false;
 		}
 		float id = 1.0f/d[j];
diff --git a/rtengine/iptransform.cc b/rtengine/iptransform.cc
index 4e834d451..b2896fe82 100644
--- a/rtengine/iptransform.cc
+++ b/rtengine/iptransform.cc
@@ -297,7 +297,6 @@ static void calcGradientParams(int oW, int oH, const GradientParams& gradient, s
 	if (gp.transpose) {
 		gp.bright_top = !gp.bright_top;
 	}
-	float *grad = (float *)malloc(w * h * sizeof(float));
 	if (gp.transpose) {
 		int tmp = w;
 		w = h;