[3.13.y-ckt stable] Patch "ASoC: wm_adsp: Avoid attempt to free buffers that might still be in use" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    ASoC: wm_adsp: Avoid attempt to free buffers that might still be in use

to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.11-ckt12.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From c265caf222cae4e324e559bf284f352237f45a38 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax at opensource.wolfsonmicro.com>
Date: Mon, 17 Nov 2014 10:48:21 +0000
Subject: ASoC: wm_adsp: Avoid attempt to free buffers that might still be in
 use

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 at samsung.com>
Signed-off-by: Charles Keepax <ckeepax at opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 sound/soc/codecs/wm_adsp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 07c99e8..c9524db 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -1340,6 +1340,7 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp)
 			  file, blocks, pos - firmware->size);

 out_fw:
+	regmap_async_complete(regmap);
 	release_firmware(firmware);
 	wm_adsp_buf_free(&buf_list);
 out:
--
1.9.1