This is a note to let you know that I've just added the patch titled
media: pulse8-cec: handle possible ping error
to the 5.15-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-pulse8-cec-handle-possible-ping-error.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 15de3c5c78bf396287870401ce4b6c47e503520f
Author: Dmitry Antipov <dmantipov@xxxxxxxxx>
Date: Tue Jun 6 06:38:15 2023 +0200
media: pulse8-cec: handle possible ping error
[ Upstream commit 92cbf865ea2e0f2997ff97815c6db182eb23df1b ]
Handle (and warn about) possible error waiting for MSGCODE_PING result.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Dmitry Antipov <dmantipov@xxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/media/cec/usb/pulse8/pulse8-cec.c b/drivers/media/cec/usb/pulse8/pulse8-cec.c
index 04b13cdc38d2c..ba67587bd43ec 100644
--- a/drivers/media/cec/usb/pulse8/pulse8-cec.c
+++ b/drivers/media/cec/usb/pulse8/pulse8-cec.c
@@ -809,8 +809,11 @@ static void pulse8_ping_eeprom_work_handler(struct work_struct *work)
mutex_lock(&pulse8->lock);
cmd = MSGCODE_PING;
- pulse8_send_and_wait(pulse8, &cmd, 1,
- MSGCODE_COMMAND_ACCEPTED, 0);
+ if (pulse8_send_and_wait(pulse8, &cmd, 1,
+ MSGCODE_COMMAND_ACCEPTED, 0)) {
+ dev_warn(pulse8->dev, "failed to ping EEPROM\n");
+ goto unlock;
+ }
if (pulse8->vers < 2)
goto unlock;
