From: David Härdeman <david@hardeman.nu>
Date: Mon, 1 May 2017 16:04:37 +0000 (-0300)
Subject: [media] lirc_dev: return POLLHUP and POLLERR when device is gone
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=29debf3d9d214f600af38069e5954699934abe74;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

[media] lirc_dev: return POLLHUP and POLLERR when device is gone

Most drivers return both values when the device is gone.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
---

diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c
index e01b6e635704..786059745f90 100644
--- a/drivers/media/rc/lirc_dev.c
+++ b/drivers/media/rc/lirc_dev.c
@@ -372,7 +372,7 @@ unsigned int lirc_dev_fop_poll(struct file *file, poll_table *wait)
 	}
 
 	if (!ir->attached)
-		return POLLERR;
+		return POLLHUP | POLLERR;
 
 	if (ir->buf) {
 		poll_wait(file, &ir->buf->wait_poll, wait);