| From | Kamal Mostafa <> | Subject | [PATCH 4.2.y-ckt 194/268] [media] lirc_imon: do not leave imon_probe() with mutex held | Date | Wed, 27 Jan 2016 12:34:15 -0800 |
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4.2.8-ckt3 -stable review patch. If anyone has any objections, please let me know.
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From: Alexey Khoroshilov <khoroshilov@ispras.ru>
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@ispras.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/staging/media/lirc/lirc_imon.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/staging/media/lirc/lirc_imon.c b/drivers/staging/media/lirc/lirc_imon.c index 62ec9f7..45b6443 100644 --- 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_interface *interface, 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: -- 1.9.1
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