From: Sean Young <sean@mess.org>
Date: Wed, 18 Apr 2018 09:36:25 +0000 (-0400)
Subject: media: rc: mceusb: IR of length 0 means IR timeout, not reset
X-Git-Tag: Ubuntu-5.10.0-12.13~7696^2~391
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=91352b572786a49f26a12e8b1b7571bc3df64bab;p=mirror_ubuntu-hirsute-kernel.git

media: rc: mceusb: IR of length 0 means IR timeout, not reset

The last usb packet with IR data will end with 0x80 (MCE_IRDATA_TRAILER).
If we reset the decoder state at this point, IR decoding can fail.

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

diff --git a/drivers/media/rc/mceusb.c b/drivers/media/rc/mceusb.c
index 69ba57372c05..a1c21903b96c 100644
--- a/drivers/media/rc/mceusb.c
+++ b/drivers/media/rc/mceusb.c
@@ -1182,7 +1182,12 @@ static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
 			if (ir->rem) {
 				ir->parser_state = PARSE_IRDATA;
 			} else {
-				ir_raw_event_reset(ir->rc);
+				init_ir_raw_event(&rawir);
+				rawir.timeout = 1;
+				rawir.duration = ir->rc->timeout;
+				if (ir_raw_event_store_with_filter(ir->rc,
+								   &rawir))
+					event = true;
 				ir->pulse_tunit = 0;
 				ir->pulse_count = 0;
 			}