From: Andrey Utkin <andrey.krieger.utkin@gmail.com>
To: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
devel@driverdev.osuosl.org
Cc: ismael.luceno@corp.bluecherry.net, m.chehab@samsung.com,
hverkuil@xs4all.nl, Andrey Utkin <andrey.krieger.utkin@gmail.com>
Subject: [PATCH 4/4] [media] solo6x10: don't turn off/on encoder interrupt in processing loop
Date: Wed, 29 Oct 2014 20:03:54 +0400 [thread overview]
Message-ID: <1414598634-13446-4-git-send-email-andrey.krieger.utkin@gmail.com> (raw)
In-Reply-To: <1414598634-13446-1-git-send-email-andrey.krieger.utkin@gmail.com>
The used approach actually cannot prevent new encoder interrupt to
appear, because interrupt handler can execute in different thread, and
in current implementation there is still race condition regarding this.
Also from practice the code with this change seems to work as stable as
before.
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
---
drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c b/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c
index b9b61b9..30e09d9 100644
--- a/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c
+++ b/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c
@@ -703,9 +703,7 @@ static int solo_ring_thread(void *data)
if (timeout == -ERESTARTSYS || kthread_should_stop())
break;
- solo_irq_off(solo_dev, SOLO_IRQ_ENCODER);
solo_handle_ring(solo_dev);
- solo_irq_on(solo_dev, SOLO_IRQ_ENCODER);
try_to_freeze();
}
--
1.8.5.5
next prev parent reply other threads:[~2014-10-29 16:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-29 16:03 [PATCH 1/4] [media] solo6x10: free vb2 buffers on stop_streaming Andrey Utkin
2014-10-29 16:03 ` [PATCH 2/4] [media] solo6x10: free DMA allocation when releasing encoder Andrey Utkin
2014-10-29 16:03 ` [PATCH 3/4] [media] solo6x10: bind start & stop of encoded frames processing thread to device (de)init Andrey Utkin
2014-10-29 16:03 ` Andrey Utkin [this message]
2014-11-03 15:15 ` [PATCH 4/4] [media] solo6x10: don't turn off/on encoder interrupt in processing loop Hans Verkuil
2014-11-04 17:55 ` Andrey Utkin
2014-11-06 14:58 ` [PATCH 1/4] [media] solo6x10: free vb2 buffers on stop_streaming Dan Carpenter
2014-11-06 21:06 ` [PATCH v2 1/4] [media] solo6x10: clean up properly in stop_streaming Andrey Utkin
2014-11-07 6:30 ` Dan Carpenter
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