scsi: wd33c93: Don't use stale scsi_pointer value

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From: Daniel Palmer <daniel@xxxxxxxx>

commit 9023ed8d91eb1fcc93e64dc4962f7412b1c4cbec upstream.

A regression was introduced with commit dbb2da557a6a ("scsi: wd33c93:
Move the SCSI pointer to private command data") which results in an oops
in wd33c93_intr(). That commit added the scsi_pointer variable and
initialized it from hostdata->connected. However, during selection,
hostdata->connected is not yet valid. Fix this by getting the current
scsi_pointer from hostdata->selecting.

Cc: Daniel Palmer <daniel@xxxxxxxx>
Cc: Michael Schmitz <schmitzmic@xxxxxxxxx>
Cc: stable@xxxxxxxxxx
Fixes: dbb2da557a6a ("scsi: wd33c93: Move the SCSI pointer to private command data")
Signed-off-by: Daniel Palmer <daniel@xxxxxxxx>
Co-developed-by: Finn Thain <fthain@xxxxxxxxxxxxxx>
Signed-off-by: Finn Thain <fthain@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/09e11a0a54e6aa2a88bd214526d305aaf018f523.1727926187.git.fthain@xxxxxxxxxxxxxx
Reviewed-by: Michael Schmitz <schmitzmic@xxxxxxxxx>
Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/scsi/wd33c93.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -831,7 +831,7 @@ wd33c93_intr(struct Scsi_Host *instance)
 		/* construct an IDENTIFY message with correct disconnect bit */
 
 		hostdata->outgoing_msg[0] = IDENTIFY(0, cmd->device->lun);
-		if (scsi_pointer->phase)
+		if (WD33C93_scsi_pointer(cmd)->phase)
 			hostdata->outgoing_msg[0] |= 0x40;
 
 		if (hostdata->sync_stat[cmd->device->id] == SS_FIRST) {


Patches currently in stable-queue which might be from daniel@xxxxxxxx are

queue-6.1/scsi-wd33c93-don-t-use-stale-scsi_pointer-value.patch




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