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Subject[PATCH 3.19.y-ckt 092/146] ASoC: dapm: Modify widget stream name according to prefix
Date
3.19.8-ckt2 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Koro Chen <koro.chen@mediatek.com>

commit fdb6eb0a12871d5bfaf266c5a0d5259a5437a72f upstream.

When there is prefix specified, currently we will add this prefix in
widget->name, but not in widget->sname.
it causes failure at snd_soc_dapm_link_dai_widgets:

if (!w->sname || !strstr(w->sname, dai_w->name))

because dai_w->name has prefix added, but w->sname does not.
We should also add prefix for stream name

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
sound/soc/soc-dapm.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index c5136bb..9d56b0b 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -3073,11 +3073,16 @@ snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
}

prefix = soc_dapm_prefix(dapm);
- if (prefix)
+ if (prefix) {
w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name);
- else
+ if (widget->sname)
+ w->sname = kasprintf(GFP_KERNEL, "%s %s", prefix,
+ widget->sname);
+ } else {
w->name = kasprintf(GFP_KERNEL, "%s", widget->name);
-
+ if (widget->sname)
+ w->sname = kasprintf(GFP_KERNEL, "%s", widget->sname);
+ }
if (w->name == NULL) {
kfree(w);
return NULL;
--
1.9.1


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