lib/genalloc.c: check result of devres_alloc()
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>
diff --git a/lib/genalloc.c b/lib/genalloc.c
index 0fe1cbe..d214866 100644
--- a/lib/genalloc.c
+++ b/lib/genalloc.c
@@ -586,6 +586,8 @@
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) {