mem_zero_detect_test: fix for issue reported by static code analysis

Signed-off-by: Tomasz Kantecki <[email protected]>

Author: tkanteck

mem/mem_zero_detect_test.c

@@ -78,14 +78,19 @@ int main(int argc, char *argv[])
 	// Test to help memory checkers
 	for (i = 1; i < 2345; i++) {
 		uint8_t *newbuf = (uint8_t *) malloc(i);
+
+		if (newbuf == NULL) {
+			printf("Fail alloc test - not enough memory\n");
+			failures = -1;
+			goto exit;
+		}
 		memset(newbuf, 0, i);
 		failures = isal_zero_detect(newbuf, i);
+		free(newbuf);
 		if (failures) {
 			printf("Fail alloc test\n");
-			free(newbuf);
 			goto exit;
 		}
-		free(newbuf);
 	}
 
 	// Test small buffers