From: Yu Kuai <yukuai3@xxxxxxxxxx>
At the time bdev_may_open() is called, module reference is grabbed
already, hence module reference should be released if bdev_may_open()
failed.
This problem is found by code review.
Fixes: ed5cc702d311 ("block: Add config option to not allow writing to mounted devices")
Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
block/bdev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/bdev.c b/block/bdev.c
index 82fb1688f4c9..86db97b0709e 100644
--- a/block/bdev.c
+++ b/block/bdev.c
@@ -890,7 +890,7 @@ int bdev_open(struct block_device *bdev, blk_mode_t mode, void *holder,
goto abort_claiming;
ret = -EBUSY;
if (!bdev_may_open(bdev, mode))
- goto abort_claiming;
+ goto put_module;
if (bdev_is_partition(bdev))
ret = blkdev_get_part(bdev, mode);
else
--
2.39.2
