[PATCH 3.17 036/146] qla2xxx: fix kernel NULL pointer access

From: Greg Kroah-Hartman
Date: Tue Oct 28 2014 - 03:58:01 EST


3.17-stable review patch. If anyone has any objections, please let me know.

------------------

From: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>

commit 78c2106a50e067f7168ee8c0944baaeb0e988272 upstream.

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().

Signed-off-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>
Signed-off-by: Saurav Kashyap <saurav.kashyap@xxxxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/scsi/qla2xxx/qla_target.c | 1 +
1 file changed, 1 insertion(+)

--- 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(struc
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;


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