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authorMinfei Huang <mnghuan@gmail.com>2016-06-07 10:05:15 +0800
committerJens Axboe <axboe@fb.com>2016-07-12 16:17:18 -0700
commit7a6497378ae832daa1668a10be04ebdacd60468b (patch)
tree33eaf46fb37aa7019fc9ab9fab1c4e8db880317f /drivers/block
parent6eae8c45206733ba3a56b4f9e278774ad397b092 (diff)
loop: Make user notify for adding loop device failed
There is no error number returned if loop driver fails in function alloc_disk to add new loop device. Add a correct error number to make user notify in this case. Signed-off-by: Minfei Huang <mnghuan@gmail.com> Reviewed-by: Ming Lei <tom.leiming@gmail.com> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/loop.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 364d491d4bdd..075377eee0c0 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1765,6 +1765,7 @@ static int loop_add(struct loop_device **l, int i)
*/
queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, lo->lo_queue);
+ err = -ENOMEM;
disk = lo->lo_disk = alloc_disk(1 << part_shift);
if (!disk)
goto out_free_queue;