diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c
index 93c83e3cb4a7a350a439c691103ad008af5c9585..25fd3f1966f193e50ee60d12802d0538f8e18693 100644
--- a/tools/perf/bench/mem-memcpy.c
+++ b/tools/perf/bench/mem-memcpy.c
@@ -111,11 +111,11 @@ static double timeval2double(struct timeval *ts)
 static void alloc_mem(void **dst, void **src, size_t length)
 {
 	*dst = zalloc(length);
-	if (!dst)
+	if (!*dst)
 		die("memory allocation failed - maybe length is too large?\n");
 
 	*src = zalloc(length);
-	if (!src)
+	if (!*src)
 		die("memory allocation failed - maybe length is too large?\n");
 }
 
diff --git a/tools/perf/bench/mem-memset.c b/tools/perf/bench/mem-memset.c
index c6e4bc52349279bcf7d1aef2fcc1430e1f03e74a..4a2f12081964163c3f93bede8934c723806d16f2 100644
--- a/tools/perf/bench/mem-memset.c
+++ b/tools/perf/bench/mem-memset.c
@@ -111,7 +111,7 @@ static double timeval2double(struct timeval *ts)
 static void alloc_mem(void **dst, size_t length)
 {
 	*dst = zalloc(length);
-	if (!dst)
+	if (!*dst)
 		die("memory allocation failed - maybe length is too large?\n");
 }