]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
block/swim3: Fix -EBUSY error when re-opening device after unmount
authorFinn Thain <fthain@telegraphics.com.au>
Mon, 31 Dec 2018 05:44:09 +0000 (16:44 +1100)
committerJens Axboe <axboe@kernel.dk>
Mon, 31 Dec 2018 17:19:15 +0000 (10:19 -0700)
commit296dcc40f2f2e402facf7cd26cf3f2c8f4b17d47
treef89c21a86cbe94b244c5c0bcb2799813576d4bf0
parentf3010ec5b7963b63f5f455725f947a95e55e0c03
block/swim3: Fix -EBUSY error when re-opening device after unmount

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>
drivers/block/swim3.c