Patch "ibmvscsis: Clear left-over abort_cmd pointers" has been added to the 4.9-stable tree

Patch "ibmvscsis: Clear left-over abort_cmd pointers" has been added to the 4.9-stable tree

[gregkh]

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

    ibmvscsis: Clear left-over abort_cmd pointers

to the 4.9-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:
     ibmvscsis-clear-left-over-abort_cmd-pointers.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 98883f1b5415ea9dce60d5178877d15f4faa10b8 Mon Sep 17 00:00:00 2001
From: "Bryant G. Ly" <bryantly@linux.vnet.ibm.com>
Date: Tue, 9 May 2017 11:50:26 -0500
Subject: ibmvscsis: Clear left-over abort_cmd pointers

From: Bryant G. Ly <bryantly@linux.vnet.ibm.com>

commit 98883f1b5415ea9dce60d5178877d15f4faa10b8 upstream.

With the addition of ibmvscsis->abort_cmd pointer within
commit 25e78531268e ("ibmvscsis: Do not send aborted task response"),
make sure to explicitly NULL these pointers when clearing
DELAY_SEND flag.

Do this for two cases, when getting the new new ibmvscsis
descriptor in ibmvscsis_get_free_cmd() and before posting
the response completion in ibmvscsis_send_messages().

Signed-off-by: Bryant G. Ly <bryantly@linux.vnet.ibm.com>
Reviewed-by: Michael Cyr <mikecyr@linux.vnet.ibm.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
@@ -1169,6 +1169,8 @@ static struct ibmvscsis_cmd *ibmvscsis_g
 		cmd = list_first_entry_or_null(&vscsi->free_cmd,
 					       struct ibmvscsis_cmd, list);
 		if (cmd) {
+			if (cmd->abort_cmd)
+				cmd->abort_cmd = NULL;
 			cmd->flags &= ~(DELAY_SEND);
 			list_del(&cmd->list);
 			cmd->iue = iue;
@@ -1773,6 +1775,7 @@ static void ibmvscsis_send_messages(stru
 				if (cmd->abort_cmd) {
 					retry = true;
 					cmd->abort_cmd->flags &= ~(DELAY_SEND);
+					cmd->abort_cmd = NULL;
 				}
 
 				/*


Patches currently in stable-queue which might be from bryantly@linux.vnet.ibm.com are

queue-4.9/ibmvscsis-fix-the-incorrect-req_lim_delta.patch
queue-4.9/ibmvscsis-clear-left-over-abort_cmd-pointers.patch