This is a note to let you know that I've just added the patch titled
[media] mceusb: sporadic RX truncation corruption fix
to the 3.18-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:
mceusb-sporadic-rx-truncation-corruption-fix.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Tue Apr 10 13:58:07 CEST 2018
From: A Sun <as1033x@xxxxxxxxxxx>
Date: Sun, 26 Mar 2017 15:33:07 -0300
Subject: [media] mceusb: sporadic RX truncation corruption fix
From: A Sun <as1033x@xxxxxxxxxxx>
[ Upstream commit 8e175b22e8640bf3a58e071af54190b909e4a944 ]
Intermittent RX truncation and loss of IR received data. This resulted
in receive stream synchronization errors where driver attempted to
incorrectly parse IR data (eg 0x90 below) as command response.
[ 3969.139898] mceusb 1-1.2:1.0: processed IR data
[ 3969.151315] mceusb 1-1.2:1.0: rx data: 00 90 (length=2)
[ 3969.151321] mceusb 1-1.2:1.0: Unknown command 0x00 0x90
[ 3969.151336] mceusb 1-1.2:1.0: rx data: 98 0a 8d 0a 8e 0a 8e 0a 8e 0a 8e 0a 9a 0a 8e 0a 0b 3a 8e 00 80 41 59 00 00 (length=25)
[ 3969.151341] mceusb 1-1.2:1.0: Raw IR data, 24 pulse/space samples
[ 3969.151348] mceusb 1-1.2:1.0: Storing space with duration 500000
Bug trigger appears to be normal, but heavy, IR receiver use.
Signed-off-by: A Sun <as1033x@xxxxxxxxxxx>
Signed-off-by: Sean Young <sean@xxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/rc/mceusb.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
--- a/drivers/media/rc/mceusb.c
+++ b/drivers/media/rc/mceusb.c
@@ -1370,8 +1370,13 @@ static int mceusb_dev_probe(struct usb_i
goto rc_dev_fail;
/* wire up inbound data handler */
- usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,
- mceusb_dev_recv, ir, ep_in->bInterval);
+ if (usb_endpoint_xfer_int(ep_in))
+ usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,
+ mceusb_dev_recv, ir, ep_in->bInterval);
+ else
+ usb_fill_bulk_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,
+ mceusb_dev_recv, ir);
+
ir->urb_in->transfer_dma = ir->dma_in;
ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
Patches currently in stable-queue which might be from as1033x@xxxxxxxxxxx are
queue-3.18/mceusb-sporadic-rx-truncation-corruption-fix.patch