This is a note to let you know that I've just added the patch titled
[media] lirc_imon: do not leave imon_probe() with mutex held
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:
lirc_imon-do-not-leave-imon_probe-with-mutex-held.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@xxxxxxxxxxxxxxx> know about it.
>From b833d0df943d70682e288c38c96b8e7bfff4023a Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
Date: Sat, 14 Nov 2015 16:17:56 -0200
Subject: [media] lirc_imon: do not leave imon_probe() with mutex held
From: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
commit b833d0df943d70682e288c38c96b8e7bfff4023a upstream.
Commit af8a819a2513 ("[media] lirc_imon: simplify error handling code")
lost mutex_unlock(&context->ctx_lock), so imon_probe() exits with
the context->ctx_lock mutex acquired.
The patch adds mutex_unlock(&context->ctx_lock) back.
Found by Linux Driver Verification project (linuxtesting.org).
Fixes: af8a819a2513 ("[media] lirc_imon: simplify error handling code")
Signed-off-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/media/lirc/lirc_imon.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/staging/media/lirc/lirc_imon.c
+++ b/drivers/staging/media/lirc/lirc_imon.c
@@ -885,12 +885,14 @@ static int imon_probe(struct usb_interfa
vendor, product, ifnum, usbdev->bus->busnum, usbdev->devnum);
/* Everything went fine. Just unlock and return retval (with is 0) */
+ mutex_unlock(&context->ctx_lock);
goto driver_unlock;
unregister_lirc:
lirc_unregister_driver(driver->minor);
free_tx_urb:
+ mutex_unlock(&context->ctx_lock);
usb_free_urb(tx_urb);
free_rx_urb:
Patches currently in stable-queue which might be from khoroshilov@xxxxxxxxx are
queue-4.4/lirc_imon-do-not-leave-imon_probe-with-mutex-held.patch
