From: Himanshu Madhani <himanshu.madhani@qlogic.com>
Date: Thu, 25 Sep 2014 10:14:44 +0000 (-0400)
Subject: qla2xxx: fix kernel NULL pointer access
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=78c2106a50e067f7168ee8c0944baaeb0e988272;p=deliverable%2Flinux.git

qla2xxx: fix kernel NULL pointer access

This patch is to fix regression added by commit id
51a07f84649d2be206c4c2ad9a612956db0c2f8c.

When allocating memory for new session original patch does
not assign vha to op->vha resulting into NULL pointer
access during qlt_create_sess_from_atio().

Cc: <stable@vger.kernel.org>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---

diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index aebe62c9246d..43f91778371b 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -3277,6 +3277,7 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
 			return -ENOMEM;
 
 		memcpy(&op->atio, atio, sizeof(*atio));
+		op->vha = vha;
 		INIT_WORK(&op->work, qlt_create_sess_from_atio);
 		queue_work(qla_tgt_wq, &op->work);
 		return 0;