[U-Boot] [PATCH 5/5] malloc_simple: calloc: don't call memset if malloc failed

Marek Vasut marex at denx.de
Mon Aug 6 12:43:42 UTC 2018


On 08/05/2018 09:35 PM, Simon Goldschmidt wrote:
> 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>
> ---
> 
>  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;
>  }
> 
Reviewed-by: Marek Vasut <marex at denx.de>

-- 
Best regards,
Marek Vasut


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