[SCSI] mptfusion: sanity check for vdevice pointer is added
Added sanity checks before accessing vdevice and added vdevice->deleted
setting for mptfc.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c
index e7fab5d..f06b291 100644
--- a/drivers/message/fusion/mptctl.c
+++ b/drivers/message/fusion/mptctl.c
@@ -1329,6 +1329,8 @@
if (ioc->sh) {
shost_for_each_device(sdev, ioc->sh) {
vdevice = sdev->hostdata;
+ if (vdevice == NULL || vdevice->vtarget == NULL)
+ continue;
if (vdevice->vtarget->tflags &
MPT_TARGET_FLAGS_RAID_COMPONENT)
continue;
@@ -1450,6 +1452,8 @@
if (!maxWordsLeft)
continue;
vdevice = sdev->hostdata;
+ if (vdevice == NULL || vdevice->vtarget == NULL)
+ continue;
if (vdevice->vtarget->tflags &
MPT_TARGET_FLAGS_RAID_COMPONENT)
continue;
@@ -1978,6 +1982,9 @@
struct scsi_target *starget = scsi_target(sdev);
VirtTarget *vtarget = starget->hostdata;
+ if (vtarget == NULL)
+ continue;
+
if ((pScsiReq->TargetID == vtarget->id) &&
(pScsiReq->Bus == vtarget->channel) &&
(vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))