| From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.19 055/258] media: rc: ensure close() is called on rc_unregister_device | Date | Mon, 28 Jan 2019 10:56:01 -0500 |
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From: Sean Young <sean@mess.org>
[ Upstream commit 8e782fcf78275f505194e767c515202d4fd274bc ]
If userspace has an open file descriptor on the rc input device or lirc device when rc_unregister_device() is called, then the rc close() is never called.
This ensures that the receiver is turned off on the nuvoton-cir driver during shutdown.
Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/media/rc/rc-main.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c index 8b2c16dd58bd..0f218afdadaa 100644 --- a/drivers/media/rc/rc-main.c +++ b/drivers/media/rc/rc-main.c @@ -1956,6 +1956,8 @@ void rc_unregister_device(struct rc_dev *dev) rc_free_rx_device(dev); mutex_lock(&dev->lock); + if (dev->users && dev->close) + dev->close(dev); dev->registered = false; mutex_unlock(&dev->lock); -- 2.19.1
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