From: Nicholas Bellinger Date: Mon, 16 Jun 2014 20:25:54 +0000 (+0000) Subject: target: Fix left-over se_lun->lun_sep pointer OOPs X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=83ff42fcce070801a3aa1cd6a3269d7426271a8d;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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 Tested-by: Sebastian Herbszt Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger --- diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 11d26fe65bfb..98da90167159 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; }