This is to fix a regression that only affect the stable (not for the mainline) that the stable commit fdf9d86 was incorrectly placed dev->dev_link_magic check before the *dev assignment in target_fabric_port_link() due to fuzzy automatically context adjustment during the back-porting.
Reported-by: Chris Boot <bo...@bootc.net> Signed-off-by: Nicholas Bellinger <n...@linux-iscsi.org> Signed-off-by: CAI Qian <caiq...@redhat.com> diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index a55f91a..9430cd2 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -751,12 +751,6 @@ static int target_fabric_port_link( struct target_fabric_configfs *tf; int ret; - if (dev->dev_link_magic != SE_DEV_LINK_MAGIC) { - pr_err("Bad dev->dev_link_magic, not a valid se_dev_ci pointer:" - " %p to struct se_device: %p\n", se_dev_ci, dev); - return -EFAULT; - } - tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; se_tpg = container_of(to_config_group(tpg_ci), struct se_portal_group, tpg_group); @@ -774,6 +768,11 @@ static int target_fabric_port_link( ret = -ENODEV; goto out; } + if (dev->dev_link_magic != SE_DEV_LINK_MAGIC) { + pr_err("Bad dev->dev_link_magic, not a valid se_dev_ci pointer:" + " %p to struct se_device: %p\n", se_dev_ci, dev); + return -EFAULT; + } lun_p = core_dev_add_lun(se_tpg, dev, lun->unpacked_lun); if (IS_ERR(lun_p)) { -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html