From: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Date: Fri, 5 Apr 2013 11:06:07 +0000 (-0400)
Subject: [SCSI] qla4xxx: Restrict logout from boot target session using session id
X-Git-Tag: firefly_0821_release~3680^2~632^2~5
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=37719c2a54caff1f3d7861a17e06327f74002bb2;p=firefly-linux-kernel-4.4.55.git

[SCSI] qla4xxx: Restrict logout from boot target session using session id

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---

diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 5f7a2bc32069..f82efcb82684 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -5916,6 +5916,14 @@ static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess)
 		goto exit_ddb_logout;
 	}
 
+	if (test_bit(DF_BOOT_TGT, &ddb_entry->flags)) {
+		ql4_printk(KERN_ERR, ha,
+			   "%s: Logout from boot target entry is not permitted.\n",
+			   __func__);
+		ret = -EPERM;
+		goto exit_ddb_logout;
+	}
+
 	options = LOGOUT_OPTION_CLOSE_SESSION;
 	if (qla4xxx_session_logout_ddb(ha, ddb_entry, options) == QLA_ERROR) {
 		ql4_printk(KERN_ERR, ha, "%s: Logout failed\n", __func__);