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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2017-09-11 21:43:23 +0200
committerJens Axboe <axboe@kernel.dk>2017-09-11 14:16:44 -0600
commit0b045bd1c1c2819b33f4522e3efa4666d1ecf1a4 (patch)
tree33fb862c96efa57895b6a67980f8e27c0c24363b
parentblock: fix integer overflow in __blkdev_sectors_to_bio_pages() (diff)
downloadlinux-dev-0b045bd1c1c2819b33f4522e3efa4666d1ecf1a4.tar.xz
linux-dev-0b045bd1c1c2819b33f4522e3efa4666d1ecf1a4.zip
mm/backing-dev.c: fix an error handling path in 'cgwb_create()'
If the 'kmalloc' fails, we must go through the existing error handling path. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Fixes: 52ebea749aae ("writeback: make backing_dev_info host cgroup-specific bdi_writebacks") Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to '')
-rw-r--r--mm/backing-dev.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index f028a9a472fd..e19606bb41a0 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -569,8 +569,10 @@ static int cgwb_create(struct backing_dev_info *bdi,
/* need to create a new one */
wb = kmalloc(sizeof(*wb), gfp);
- if (!wb)
- return -ENOMEM;
+ if (!wb) {
+ ret = -ENOMEM;
+ goto out_put;
+ }
ret = wb_init(wb, bdi, blkcg_css->id, gfp);
if (ret)