This is a note to let you know that I've just added the patch titled
ASoC: wm_adsp: Avoid attempt to free buffers that might still be in use
to the 3.17-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:
asoc-wm_adsp-avoid-attempt-to-free-buffers-that-might-still-be-in-use.patch
and it can be found in the queue-3.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 9da7a5a9fdeeb76b2243f6b473363a7e6147ab6f Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 17 Nov 2014 10:48:21 +0000
Subject: ASoC: wm_adsp: Avoid attempt to free buffers that might still be in use
From: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
commit 9da7a5a9fdeeb76b2243f6b473363a7e6147ab6f upstream.
We should not free any buffers associated with writing out coefficients
to the DSP until all the async writes have completed. This patch updates
the out of memory path when allocating a new buffer to include a call to
regmap_async_complete.
Reported-by: JS Park <aitdark.park@xxxxxxxxxxx>
Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/soc/codecs/wm_adsp.c | 1 +
1 file changed, 1 insertion(+)
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -1355,6 +1355,7 @@ static int wm_adsp_load_coeff(struct wm_
file, blocks, pos - firmware->size);
out_fw:
+ regmap_async_complete(regmap);
release_firmware(firmware);
wm_adsp_buf_free(&buf_list);
out:
Patches currently in stable-queue which might be from ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx are
queue-3.17/asoc-wm_adsp-avoid-attempt-to-free-buffers-that-might-still-be-in-use.patch
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