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UPSTREAM: media: rc: ensure close() is called on rc_unregister_device

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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>
(cherry picked from commit 8e782fcf78)
Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
This commit is contained in:
Sean Young
2018-11-04 05:12:09 -05:00
committed by Tao Huang
parent 3a811ff882
commit 6c10a2ac71
1 changed files with 2 additions and 0 deletions
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2
drivers/media/rc/rc-main.c
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@@ -1951,6 +1951,8 @@ 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);