4.0-stable review patch. If anyone has any objections, please let me know.
------------------
From: Koro Chen <koro.chen@xxxxxxxxxxxx>
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@xxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/soc/soc-dapm.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -3074,11 +3074,16 @@ snd_soc_dapm_new_control(struct snd_soc_
}
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;
--
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