Patch "usb: host: fix incorrect updating of offset" has been added to the 4.4-stable tree

Patch "usb: host: fix incorrect updating of offset" has been added to the 4.4-stable tree

[gregkh]

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

    usb: host: fix incorrect updating of offset

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:
     usb-host-fix-incorrect-updating-of-offset.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 <stable@vger.kernel.org> know about it.


>From 1d5a31582ef046d3b233f0da1a68ae26519b2f0a Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Tue, 7 Nov 2017 16:45:04 +0000
Subject: usb: host: fix incorrect updating of offset

From: Colin Ian King <colin.king@canonical.com>

commit 1d5a31582ef046d3b233f0da1a68ae26519b2f0a upstream.

The variable temp is incorrectly being updated, instead it should
be offset otherwise the loop just reads the same capability value
and loops forever.  Thanks to Alan Stern for pointing out the
correct fix to my original fix.  Fix also cleans up clang warning:

drivers/usb/host/ehci-dbg.c:840:4: warning: Value stored to 'temp'
is never read

Fixes: d49d43174400 ("USB: misc ehci updates")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/host/ehci-dbg.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -851,7 +851,7 @@ static ssize_t fill_registers_buffer(str
 			default:		/* unknown */
 				break;
 			}
-			temp = (cap >> 8) & 0xff;
+			offset = (cap >> 8) & 0xff;
 		}
 	}
 #endif


Patches currently in stable-queue which might be from colin.king@canonical.com are

queue-4.4/usb-host-fix-incorrect-updating-of-offset.patch
queue-4.4/net-sctp-fix-array-overrun-read-on-sctp_timer_tbl.patch