jerasure.c: fix memory leak in error case

Check matrix for NULL before call talloc().

CID 1093213 (#1 of 1): Resource leak (RESOURCE_LEAK)
 4. leaked_storage: Variable "bitmatrix" going out of scope
 leaks the storage it points to.

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
(cherry picked from commit 6d8fbc8b818c9f23a538f1586ee055b1dd7a7f2f)

diff --git a/src/jerasure.c b/src/jerasure.c
index 429765308c24e42b5fb0a2f7655baee38558add4..8237bfc1bb0324780482c944023813cfca4acc85 100644 (file)
--- a/src/jerasure.c
+++ b/src/jerasure.c
@@ -274,9 +274,10 @@ int *jerasure_matrix_to_bitmatrix(int k, int m, int w, int *matrix)
   int *bitmatrix;
   int rowelts, rowindex, colindex, elt, i, j, l, x;
 
-  bitmatrix = talloc(int, k*m*w*w);
   if (matrix == NULL) { return NULL; }
 
+  bitmatrix = talloc(int, k*m*w*w);
+
   rowelts = k * w;
   rowindex = 0;