diff options
| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-06-16 20:25:54 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-06 18:54:13 -0700 |
| commit | 69256ce37fa37dc92680579c4e4a73f15fe79d36 (patch) | |
| tree | 14b9ce97a10ba1bd64ff5b51e95f7f4ac525e30d | |
| parent | 5e9a2a3622d30c36814ea4df359c83dde1bf53a5 (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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 8032917b663..68398753eb8 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -614,6 +614,7 @@ void core_dev_unexport( dev->export_count--; spin_unlock(&hba->device_lock); + lun->lun_sep = NULL; lun->lun_se_dev = NULL; } |