From: Wei Yongjun Date: Fri, 10 May 2013 13:37:14 +0000 (+0100) Subject: dm cache: fix error return code in cache_create X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fa4d683af3693863bec761e2761a07e4c1351f86;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git 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 Cc: stable@vger.kernel.org Signed-off-by: Alasdair G Kergon --- diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index 10744091e6ca..6feaba24fcac 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) {