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| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2024-04-30 13:13:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-12 12:03:48 +0300 |
| commit | 3f56c18a396a0b31d8746fcfea46b3e34e2a1a79 (patch) | |
| tree | b9c2d3d3f964000738e7b7acd6ebf8c87bcd9a27 /drivers/media | |
| parent | 302077d2703b93180f25bfe28debe329bcd91773 (diff) | |
| download | linux-3f56c18a396a0b31d8746fcfea46b3e34e2a1a79.tar.xz | |
media: cec: core: avoid confusing "transmit timed out" message
[ Upstream commit cbe499977bc36fedae89f0a0d7deb4ccde9798fe ]
If, when waiting for a transmit to finish, the wait is interrupted,
then you might get a "transmit timed out" message, even though the
transmit was interrupted and did not actually time out.
Set transmit_in_progress_aborted to true if the
wait_for_completion_killable() call was interrupted and ensure
that the transmit is properly marked as ABORTED.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-by: Yang, Chenyuan <cy54@illinois.edu>
Closes: https://lore.kernel.org/linux-media/PH7PR11MB57688E64ADE4FE82E658D86DA09EA@PH7PR11MB5768.namprd11.prod.outlook.com/
Fixes: 590a8e564c6e ("media: cec: abort if the current transmit was canceled")
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/cec/core/cec-adap.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/media/cec/core/cec-adap.c b/drivers/media/cec/core/cec-adap.c index 28e3f0091155..a5e5f6a4af91 100644 --- a/drivers/media/cec/core/cec-adap.c +++ b/drivers/media/cec/core/cec-adap.c @@ -490,6 +490,15 @@ int cec_thread_func(void *_adap) goto unlock; } + if (adap->transmit_in_progress && + adap->transmit_in_progress_aborted) { + if (adap->transmitting) + cec_data_cancel(adap->transmitting, + CEC_TX_STATUS_ABORTED, 0); + adap->transmit_in_progress = false; + adap->transmit_in_progress_aborted = false; + goto unlock; + } if (adap->transmit_in_progress && timeout) { /* * If we timeout, then log that. Normally this does @@ -744,6 +753,7 @@ int cec_transmit_msg_fh(struct cec_adapter *adap, struct cec_msg *msg, { struct cec_data *data; bool is_raw = msg_is_raw(msg); + int err; if (adap->devnode.unregistered) return -ENODEV; @@ -908,10 +918,13 @@ int cec_transmit_msg_fh(struct cec_adapter *adap, struct cec_msg *msg, * Release the lock and wait, retake the lock afterwards. */ mutex_unlock(&adap->lock); - wait_for_completion_killable(&data->c); + err = wait_for_completion_killable(&data->c); cancel_delayed_work_sync(&data->work); mutex_lock(&adap->lock); + if (err) + adap->transmit_in_progress_aborted = true; + /* Cancel the transmit if it was interrupted */ if (!data->completed) { if (data->msg.tx_status & CEC_TX_STATUS_OK) |