[U-Boot] [PATCH v1] malloc_simple: calloc: don't call memset if malloc failed

[Simon Goldschmidt]

malloc_simple() can return 0 if out of memory. Don't call memset
from calloc() in this case but rely on the caller checking
the return value.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
Reviewed-by: Marek Vasut <marex at denx.de>

---

Changes in v1:
- extracted this patch from series "Get socfpga gen5 SPL working again"
  as it is not socfpga specific

 common/malloc_simple.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/common/malloc_simple.c b/common/malloc_simple.c
index c14f8b59c1..871b5444bd 100644
--- a/common/malloc_simple.c
+++ b/common/malloc_simple.c
@@ -57,7 +57,8 @@ void *calloc(size_t nmemb, size_t elem_size)
 	void *ptr;
 
 	ptr = malloc(size);
-	memset(ptr, '\0', size);
+	if (ptr)
+		memset(ptr, '\0', size);
 
 	return ptr;
 }
-- 
2.17.1