Patch "media: lirc: LIRC_GET_REC_RESOLUTION should return microseconds" has been added to the 4.12-stable tree

Patch "media: lirc: LIRC_GET_REC_RESOLUTION should return microseconds" has been added to the 4.12-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    media: lirc: LIRC_GET_REC_RESOLUTION should return microseconds

to the 4.12-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     media-lirc-lirc_get_rec_resolution-should-return-microseconds.patch
and it can be found in the queue-4.12 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 9f5039ba440e499d85c29b1ddbc3cbc9dc90e44b Mon Sep 17 00:00:00 2001
From: Sean Young <sean@mess.org>
Date: Fri, 7 Jul 2017 18:49:18 -0300
Subject: media: lirc: LIRC_GET_REC_RESOLUTION should return microseconds

From: Sean Young <sean@mess.org>

commit 9f5039ba440e499d85c29b1ddbc3cbc9dc90e44b upstream.

Since commit e8f4818895b3 ("[media] lirc: advertise
LIRC_CAN_GET_REC_RESOLUTION and improve") lircd uses the ioctl
LIRC_GET_REC_RESOLUTION to determine the shortest pulse or space that
the hardware can detect. This breaks decoding in lirc because lircd
expects the answer in microseconds, but nanoseconds is returned.

Reported-by: Derek <user.vdr@gmail.com>
Tested-by: Derek <user.vdr@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/media/rc/ir-lirc-codec.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/rc/ir-lirc-codec.c
+++ b/drivers/media/rc/ir-lirc-codec.c
@@ -266,7 +266,7 @@ static long ir_lirc_ioctl(struct file *f
 		if (!dev->rx_resolution)
 			return -ENOTTY;
 
-		val = dev->rx_resolution;
+		val = dev->rx_resolution / 1000;
 		break;
 
 	case LIRC_SET_WIDEBAND_RECEIVER:


Patches currently in stable-queue which might be from sean@mess.org are

queue-4.12/media-lirc-lirc_get_rec_resolution-should-return-microseconds.patch
queue-4.12/ir-spi-fix-issues-with-lirc-api.patch