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lib/genalloc.c: check result of devres_alloc()

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devm_gen_pool_create() calls devres_alloc() and dereferences its result
without checking whether devres_alloc() succeeded.  Check for error and
bail out if it happened.

Coverity-id 1016493.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kara 2015-02-13 14:36:47 -08:00 committed by Linus Torvalds
parent 8da53d4595
commit 310ee9e8f3
1 changed files with 2 additions and 0 deletions
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2
lib/genalloc.c
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@ -586,6 +586,8 @@ struct gen_pool *devm_gen_pool_create(struct device *dev, int min_alloc_order,
struct gen_pool **ptr, *pool;
ptr = devres_alloc(devm_gen_pool_release, sizeof(*ptr), GFP_KERNEL);
if (!ptr)
return NULL;
pool = gen_pool_create(min_alloc_order, nid);
if (pool) {