diff options
| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-06-16 20:25:54 +0000 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-07-17 13:43:14 +0200 |
| commit | 659489c914e8f1c88a453f8b91134dab58cdf8b6 (patch) | |
| tree | e55f3d9e1d90f24b6f67e4d26972a4bd27db3e2e /drivers/target | |
| parent | 0c57bb135d3cc97273d7dd8c58d6dbb6b0078cc3 (diff) | |
target: Fix left-over se_lun->lun_sep pointer OOPs
commit 83ff42fcce070801a3aa1cd6a3269d7426271a8d upstream.
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>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
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 e31ec5cf0c36..c7a3c5e2b1b3 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -617,6 +617,7 @@ void core_dev_unexport( dev->export_count--; spin_unlock(&hba->device_lock); + lun->lun_sep = NULL; lun->lun_se_dev = NULL; } |