diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-11-09 18:30:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-18 19:18:47 +0100 |
| commit | d9f4534a9a286877ae29e15b5f9ba8ecb7370924 (patch) | |
| tree | 765a6f89d9b55743b0d9ed166b6d794de8d4ee14 /drivers/block | |
| parent | 5818925f87d33b9a77e3f4d78a47f0f823f221cc (diff) | |
nbd: fix a block_device refcount leak in nbd_release
[ Upstream commit 2bd645b2d3f0bacadaa6037f067538e1cd4e42ef ]
bdget_disk needs to be paired with bdput to not leak a reference
on the block device inode.
Fixes: 08ba91ee6e2c ("nbd: Add the nbd NBD_DISCONNECT_ON_CLOSE config flag.")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/nbd.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 706115ecd9be..517318bb350c 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1448,6 +1448,7 @@ static void nbd_release(struct gendisk *disk, fmode_t mode) if (test_bit(NBD_DISCONNECT_ON_CLOSE, &nbd->config->runtime_flags) && bdev->bd_openers == 0) nbd_disconnect_and_put(nbd); + bdput(bdev); nbd_config_put(nbd); nbd_put(nbd); |