lkml.org 
[lkml]   [2019]   [Dec]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH AUTOSEL 5.4 138/350] ASoC: soc-pcm: fixup dpcm_prune_paths() loop continue
Date
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

[ Upstream commit bed646dc3f7bcec91178c278deaf969cce0700a8 ]

dpcm_prune_paths() is checking widget at 2 parts.
(A) is for CPU, (B) is for Codec.
If we focus to (A) part, continue at (a) is for (1) loop. But,
if we focus to (B) part, continue at (b) is for (2) loop, not for (1).
This is bug.
This patch fixup this issue.

static int dpcm_prune_paths(...)
{
...
(1) for_each_dpcm_be(fe, stream, dpcm) {
...

^ widget = dai_get_widget(...);
|
(A) if (widget && widget_in_list(...))
| (a) continue;
v
^ (2) for_each_rtd_codec_dai(...) {
| widget = dai_get_widget(...);
(B)
| if (widget && widget_in_list(...))
v (b) continue;
}
...

Fixes: 2e5894d73789 ("ASoC: pcm: Add support for DAI multicodec")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87blui64mf.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/soc-pcm.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index b600d3eaaf5cd..cdce96a3051bf 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1385,6 +1385,7 @@ static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream,
struct snd_soc_dapm_widget *widget;
struct snd_soc_dai *dai;
int prune = 0;
+ int do_prune;

/* Destroy any old FE <--> BE connections */
for_each_dpcm_be(fe, stream, dpcm) {
@@ -1398,13 +1399,16 @@ static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream,
continue;

/* is there a valid CODEC DAI widget for this BE */
+ do_prune = 1;
for_each_rtd_codec_dai(dpcm->be, i, dai) {
widget = dai_get_widget(dai, stream);

/* prune the BE if it's no longer in our active list */
if (widget && widget_in_list(list, widget))
- continue;
+ do_prune = 0;
}
+ if (!do_prune)
+ continue;

dev_dbg(fe->dev, "ASoC: pruning %s BE %s for %s\n",
stream ? "capture" : "playback",
--
2.20.1
\
 
 \ /
  Last update: 2019-12-10 22:31    [W:0.864 / U:1.120 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site