The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
Possible dependencies:
20b794ddce47 ("media: mceusb: set timeout to at least timeout provided")
528222d853f9 ("media: rc: harmonize infrared durations to microseconds")
261463dbc34f ("media: rc: add support for Infrared Toy and IR Droid devices")
6f5129e251ae ("media: rtl28xxu: fix idle handling")
e43148645d18 ("media: mceusb: fix out of bounds read in MCE receiver buffer")
81bab3fa6ca8 ("media: rc: increase rc-mm tolerance and add debug message")
9fc3ce31f5bd ("media: mceusb: fix (eliminate) TX IR signal length limit")
0c4df39e504b ("media: technisat-usb2: break out of loop at end of buffer")
172876928f98 ("media: rc: xbox_remote: add protocol and set timeout")
a49a7a4635de ("media: smipcie: add universal ir capability")
721074b03411 ("media: rc: rcmm decoder and encoder")
903b77c63167 ("Merge tag 'linux-kselftest-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 20b794ddce475ed012deb365000527c17b3e93e6 Mon Sep 17 00:00:00 2001
From: Sean Young <sean@xxxxxxxx>
Date: Fri, 2 Sep 2022 12:32:21 +0200
Subject: [PATCH] media: mceusb: set timeout to at least timeout provided
By rounding down, the actual timeout can be lower than requested. As a
result, long spaces just below the requested timeout can be incorrectly
reported as timeout and truncated.
Fixes: 877f1a7cee3f ("media: rc: mceusb: allow the timeout to be configurable")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Sean Young <sean@xxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
diff --git a/drivers/media/rc/mceusb.c b/drivers/media/rc/mceusb.c
index 39d2b03e2631..c76ba24c1f55 100644
--- a/drivers/media/rc/mceusb.c
+++ b/drivers/media/rc/mceusb.c
@@ -1077,7 +1077,7 @@ static int mceusb_set_timeout(struct rc_dev *dev, unsigned int timeout)
struct mceusb_dev *ir = dev->priv;
unsigned int units;
- units = DIV_ROUND_CLOSEST(timeout, MCE_TIME_UNIT);
+ units = DIV_ROUND_UP(timeout, MCE_TIME_UNIT);
cmdbuf[2] = units >> 8;
cmdbuf[3] = units;
