Patch "scsi: zfcp: spin_lock_irqsave() is not nestable" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

scsi: zfcp: spin_lock_irqsave() is not nestable

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
scsi-zfcp-spin_lock_irqsave-is-not-nestable.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Dan Carpenter <[email protected]>
Date: Fri, 14 Oct 2016 16:18:39 -0400
Subject: scsi: zfcp: spin_lock_irqsave() is not nestable

From: Dan Carpenter <[email protected]>

commit e7cb08e894a0b876443ef8fdb0706575dc00a5d2 upstream.

We accidentally overwrite the original saved value of "flags" so that we can't re-enable IRQs at the end of the function. Presumably this function is mostly called with IRQs disabled or it would be obvious in testing.

---
 drivers/s390/scsi/zfcp_dbf.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -384,7 +384,7 @@ void zfcp_dbf_san(char *tag, struct zfcp
 	/* if (len > rec_len):
 	 * dump data up to cap_len ignoring small duplicate in rec->payload
 	 */
-	spin_lock_irqsave(&dbf->pay_lock, flags);
+	spin_lock(&dbf->pay_lock);
 	memset(payload, 0, sizeof(*payload));
 	memcpy(payload->area, paytag, ZFCP_DBF_TAG_LEN);
 	payload->fsf_req_id = req_id;

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/scsi-zfcp-spin_lock_irqsave-is-not-nestable.patch