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media: vimc: streamer: fix memory leak in vimc subdevs if kthread_run fails

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In case kthread_run fails, the vimc subdevices
should be notified that streaming stopped so they can
release the memory for the streaming. Also, kthread should be
set to NULL.

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>
This commit is contained in:
Dafna Hirschfeld 2020-01-13 19:59:33 +01:00 committed by Mauro Carvalho Chehab
parent 23c72dd9ff
commit ceeb2e6166
1 changed files with 7 additions and 2 deletions
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9
drivers/media/platform/vimc/vimc-streamer.c
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@ -207,8 +207,13 @@ int vimc_streamer_s_stream(struct vimc_stream *stream,
stream->kthread = kthread_run(vimc_streamer_thread, stream,
"vimc-streamer thread");
if (IS_ERR(stream->kthread))
return PTR_ERR(stream->kthread);
if (IS_ERR(stream->kthread)) {
ret = PTR_ERR(stream->kthread);
dev_err(ved->dev, "kthread_run failed with %d\n", ret);
vimc_streamer_pipeline_terminate(stream);
stream->kthread = NULL;
return ret;
}
} else {
if (!stream->kthread)