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74c839b2f5
If a lirc device is unplugged, the struct rc_dev is freed even though userspace can still have a file descriptor open on the lirc chardev. The rc_dev structure can be used in a subsequent, or even currently executing ioctl, read or write. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>