diff options
| author | Dafna Hirschfeld <dafna.hirschfeld@collabora.com> | 2020-01-22 12:52:51 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-02-24 19:16:56 +0300 |
| commit | 8b9f91751b6ff19449526d63a0675177ce10f9c7 (patch) | |
| tree | 3ea7c79be663c03bd59ee0f732f29033699e9830 | |
| parent | 3eed7385bff6fc20edbe77edce3940b6cc3bf134 (diff) | |
| download | linux-8b9f91751b6ff19449526d63a0675177ce10f9c7.tar.xz | |
media: vimc: streamer: if kthread_stop fails, ignore the error
Ignore errors returned from kthread_stop since the
vimc subdevices should still be notified that
streaming stopped so they can release the memory for
the streaming, and also kthread should be set to NULL.
kthread_stop can return -EINTR in case the thread
did not yet run. This can happen if userspace calls
streamon and streamoff right after.
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
| -rw-r--r-- | drivers/media/platform/vimc/vimc-streamer.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/media/platform/vimc/vimc-streamer.c b/drivers/media/platform/vimc/vimc-streamer.c index 43e494df61d8..65feb3c596db 100644 --- a/drivers/media/platform/vimc/vimc-streamer.c +++ b/drivers/media/platform/vimc/vimc-streamer.c @@ -220,8 +220,14 @@ int vimc_streamer_s_stream(struct vimc_stream *stream, return 0; ret = kthread_stop(stream->kthread); + /* + * kthread_stop returns -EINTR in cases when streamon was + * immediately followed by streamoff, and the thread didn't had + * a chance to run. Ignore errors to stop the stream in the + * pipeline. + */ if (ret) - return ret; + dev_dbg(ved->dev, "kthread_stop returned '%d'\n", ret); stream->kthread = NULL; |