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linux_compat: fix potential NULL pointer access

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malloc_cache_aligned() might return zero, so fix potential NULL pointer
access if __GFP_ZERO flag is set.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Ralph Siemsen <ralph.siemsen@linaro.org>
This commit is contained in:
Marek Szyprowski 2019-10-02 14:37:20 +02:00 • committed by Tom Rini
parent 9b3fbb2b43
commit 2ad98ab8f6
1 changed files with 1 additions and 1 deletions
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2
lib/linux_compat.c
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@ -20,7 +20,7 @@ void *kmalloc(size_t size, int flags)
void *p; void *p;
p = malloc_cache_aligned(size); p = malloc_cache_aligned(size);
if (flags & __GFP_ZERO) if (p && flags & __GFP_ZERO)
memset(p, 0, size); memset(p, 0, size);
return p; return p;