commit: fa4d683af3693863bec761e2761a07e4c1351f86 From: Wei Yongjun <[email protected]> Date: Fri, 10 May 2013 14:37:14 +0100 Subject: dm cache: fix error return code in cache_create
Return -ENOMEM if memory allocation fails in cache_create instead of 0 (to avoid NULL pointer dereference). Signed-off-by: Wei Yongjun <[email protected]> Cc: [email protected] Signed-off-by: Alasdair G Kergon <[email protected]> --- drivers/md/dm-cache-target.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index 1074409..6feaba2 100644 --- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -1971,6 +1971,7 @@ static int cache_create(struct cache_args *ca, struct cache **result) atomic_set(&cache->nr_migrations, 0); init_waitqueue_head(&cache->migration_wait); + r = -ENOMEM; cache->nr_dirty = 0; cache->dirty_bitset = alloc_bitset(from_cblock(cache->cache_size)); if (!cache->dirty_bitset) { -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
