diff options
| author | Finn Thain <fthain@telegraphics.com.au> | 2018-12-31 16:44:09 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 19:47:18 +0100 |
| commit | 295b3e2af87c3f82f28e24f25f33e2411e259d91 (patch) | |
| tree | 0cf7df59eb7a49450339220ff766b70719d233ac /kernel/debug | |
| parent | d579abcacb0b61a487919774f3d79503d7b7f37f (diff) | |
block/swim3: Fix -EBUSY error when re-opening device after unmount
[ Upstream commit 296dcc40f2f2e402facf7cd26cf3f2c8f4b17d47 ]
When the block device is opened with FMODE_EXCL, ref_count is set to -1.
This value doesn't get reset when the device is closed which means the
device cannot be opened again. Fix this by checking for refcount <= 0
in the release method.
Reported-and-tested-by: Stan Johnson <userm57@yahoo.com>
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel/debug')
0 files changed, 0 insertions, 0 deletions