From: <gregkh@linuxfoundation.org>
To: tiwai@suse.de, alexander.levin@verizon.com, gregkh@linuxfoundation.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "ALSA: vx: Don't try to update capture stream before running" has been added to the 4.4-stable tree
Date: Sun, 19 Nov 2017 12:05:20 +0100 [thread overview]
Message-ID: <15110895200233@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
ALSA: vx: Don't try to update capture stream before running
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
alsa-vx-don-t-try-to-update-capture-stream-before-running.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From foo@baz Sun Nov 19 12:02:55 CET 2017
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 4 Jan 2017 12:34:14 +0100
Subject: ALSA: vx: Don't try to update capture stream before running
From: Takashi Iwai <tiwai@suse.de>
[ Upstream commit ed3c177d960bb5881b945ca6f784868126bb90db ]
The update of stream costs significantly, and we should avoid it
unless the stream really has started. Check pipe->running flag
instead of pipe->prepared.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/drivers/vx/vx_pcm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/sound/drivers/vx/vx_pcm.c
+++ b/sound/drivers/vx/vx_pcm.c
@@ -1015,7 +1015,7 @@ static void vx_pcm_capture_update(struct
int size, space, count;
struct snd_pcm_runtime *runtime = subs->runtime;
- if (! pipe->prepared || (chip->chip_status & VX_STAT_IS_STALE))
+ if (!pipe->running || (chip->chip_status & VX_STAT_IS_STALE))
return;
size = runtime->buffer_size - snd_pcm_capture_avail(runtime);
Patches currently in stable-queue which might be from tiwai@suse.de are
queue-4.4/alsa-vx-don-t-try-to-update-capture-stream-before-running.patch
queue-4.4/alsa-vx-fix-possible-transfer-overflow.patch
queue-4.4/alsa-hda-realtek-add-new-codec-id-alc299.patch
reply other threads:[~2017-11-19 11:05 UTC|newest]
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