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 19:20:27 +0100 |
| commit | 81dcfdb9a01566fd8cd31adce52fb4e448bfd15d (patch) | |
| tree | 299a22e818da14e6e8ffe2c3d8bc1c0146381d47 /drivers/block | |
| parent | c602ad2b52dcbca5af08e5137bd5575c039b52e3 (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 62a873718b5b..a3037fe54c3a 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1503,6 +1503,7 @@ static void nbd_release(struct gendisk *disk, fmode_t mode) if (test_bit(NBD_RT_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); |