From: Helen Koike <helen.koike@collabora.com>
To: linux-media@vger.kernel.org
Cc: lucmaga@gmail.com, linux-kernel@vger.kernel.org,
lkcamp@lists.libreplanetbr.org, andrealmeid@collabora.com,
Hans Verkuil <hverkuil@xs4all.nl>,
kernel@collabora.com
Subject: [PATCH 2/8] media: vimc: stream: fix thread state before sleep
Date: Wed, 6 Mar 2019 19:42:38 -0300 [thread overview]
Message-ID: <20190306224244.21070-3-helen.koike@collabora.com> (raw)
In-Reply-To: <20190306224244.21070-1-helen.koike@collabora.com>
The state TASK_UNINTERRUPTIBLE should be set just before
schedule_timeout() call, so it knows the sleep mode it should enter.
There is no point in setting TASK_UNINTERRUPTIBLE at the initialization
of the thread as schedule_timeout() will set the state back to
TASK_RUNNING.
This fixes a warning in __might_sleep() call, as it's expecting the
task to be in TASK_RUNNING state just before changing the state to
a sleeping state.
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Helen Koike <helen.koike@collabora.com>
---
drivers/media/platform/vimc/vimc-streamer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/vimc/vimc-streamer.c b/drivers/media/platform/vimc/vimc-streamer.c
index fcc897fb247b..392754c18046 100644
--- a/drivers/media/platform/vimc/vimc-streamer.c
+++ b/drivers/media/platform/vimc/vimc-streamer.c
@@ -120,7 +120,6 @@ static int vimc_streamer_thread(void *data)
int i;
set_freezable();
- set_current_state(TASK_UNINTERRUPTIBLE);
for (;;) {
try_to_freeze();
@@ -137,6 +136,7 @@ static int vimc_streamer_thread(void *data)
break;
}
//wait for 60hz
+ set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(HZ / 60);
}
--
2.20.1
next prev parent reply other threads:[~2019-03-06 22:43 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-06 22:42 [PATCH 0/8] media: vimc: remove media bus code limitation Helen Koike
2019-03-06 22:42 ` [PATCH 1/8] media: vimc: deb: fix default sink bayer format Helen Koike
2019-03-06 22:42 ` Helen Koike [this message]
2019-03-06 22:42 ` [PATCH 3/8] media: vimc: cap: fix step width/height in enum framesize Helen Koike
2019-03-06 22:42 ` [PATCH 4/8] media: v4l2-common: add bayer formats in v4l2_format_info Helen Koike
2019-03-06 22:42 ` [PATCH 5/8] media: vimc: stream: cleanup frame field from struct vimc_stream Helen Koike
2019-03-07 20:19 ` André Almeida
2019-03-06 22:42 ` [PATCH 6/8] media: vimc: stream: add docs to " Helen Koike
2019-03-06 22:42 ` [PATCH 7/8] media: vimc: stream: init/terminate the first entity Helen Koike
2019-03-07 20:21 ` André Almeida
2019-03-06 22:42 ` [PATCH 8/8] media: vimc: propagate pixel format in the stream Helen Koike
2019-03-07 20:23 ` André Almeida
2019-03-08 13:43 ` Hans Verkuil
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