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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-06-16 20:25:54 +0000 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-06-26 20:56:49 -0700 |
| commit | 83ff42fcce070801a3aa1cd6a3269d7426271a8d (patch) | |
| tree | 0cd8c770581abf6cef11fd01d8a4761df2cfd682 /drivers/target | |
| parent | e4fae2318b5ddd7aec0e65871f1b455b796cf33d (diff) | |
| download | op-kernel-dev-83ff42fcce070801a3aa1cd6a3269d7426271a8d.zip op-kernel-dev-83ff42fcce070801a3aa1cd6a3269d7426271a8d.tar.gz | |
target: Fix left-over se_lun->lun_sep pointer OOPs
This patch fixes a left-over se_lun->lun_sep pointer OOPs when one
of the /sys/kernel/config/target/$FABRIC/$WWPN/$TPGT/lun/$LUN/alua*
attributes is accessed after the $DEVICE symlink has been removed.
To address this bug, go ahead and clear se_lun->lun_sep memory in
core_dev_unexport(), so that the existing checks for show/store
ALUA attributes in target_core_fabric_configfs.c work as expected.
Reported-by: Sebastian Herbszt <herbszt@gmx.de>
Tested-by: Sebastian Herbszt <herbszt@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_device.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 11d26fe..98da901 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -616,6 +616,7 @@ void core_dev_unexport( dev->export_count--; spin_unlock(&hba->device_lock); + lun->lun_sep = NULL; lun->lun_se_dev = NULL; } |
