From 3e5ff4dfa5a0a5627235a245665035597f050d86 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 9 Mar 2011 11:33:09 +0000 Subject: [PATCH] ASoC: Fix double addition of prefixes due to widget prefixing We're not only prefixing all controls, we're also prefixing the widget names in the runtime data. This causes us to add the prefix twice - once when using the widget name to generate the control name and once when adding the control. Really we shouldn't be prefixing the widget names at all, the matching code should be handing this as we always know which DAPM context a widget came from and always display the widget name in terms of a DAPM context. However, we're quite close to the merge window and that's relatively invasive. Signed-off-by: Mark Brown Reported-by: Jarkko Nikula Acked-by: Jarkko Nikula Acked-by: Liam Girdwood --- sound/soc/soc-dapm.c | 29 ++++++++++++++++++++++++++--- 1 file changed, 26 insertions(+), 3 deletions(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index a6fb85d46416..e981a8339f88 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -366,7 +366,7 @@ static int dapm_new_mixer(struct snd_soc_dapm_context *dapm, struct snd_soc_dapm_widget *w) { int i, ret = 0; - size_t name_len; + size_t name_len, prefix_len; struct snd_soc_dapm_path *path; struct snd_card *card = dapm->card->snd_card; const char *prefix; @@ -376,6 +376,11 @@ static int dapm_new_mixer(struct snd_soc_dapm_context *dapm, else prefix = NULL; + if (prefix) + prefix_len = strlen(prefix) + 1; + else + prefix_len = 0; + /* add kcontrol */ for (i = 0; i < w->num_kcontrols; i++) { @@ -403,8 +408,15 @@ static int dapm_new_mixer(struct snd_soc_dapm_context *dapm, switch (w->id) { default: + /* The control will get a prefix from + * the control creation process but + * we're also using the same prefix + * for widgets so cut the prefix off + * the front of the widget name. + */ snprintf(path->long_name, name_len, "%s %s", - w->name, w->kcontrols[i].name); + w->name + prefix_len, + w->kcontrols[i].name); break; case snd_soc_dapm_mixer_named_ctl: snprintf(path->long_name, name_len, "%s", @@ -438,6 +450,7 @@ static int dapm_new_mux(struct snd_soc_dapm_context *dapm, struct snd_kcontrol *kcontrol; struct snd_card *card = dapm->card->snd_card; const char *prefix; + size_t prefix_len; int ret = 0; if (!w->num_kcontrols) { @@ -450,7 +463,17 @@ static int dapm_new_mux(struct snd_soc_dapm_context *dapm, else prefix = NULL; - kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name, prefix); + if (prefix) + prefix_len = strlen(prefix) + 1; + else + prefix_len = 0; + + /* The control will get a prefix from the control creation + * process but we're also using the same prefix for widgets so + * cut the prefix off the front of the widget name. + */ + kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name + prefix_len, + prefix); ret = snd_ctl_add(card, kcontrol); if (ret < 0) -- 2.39.2