diff options
| -rw-r--r-- | sound/soc/sh/rcar/core.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index ab0bbef7eb48..bb06dd72ca9a 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -1278,6 +1278,18 @@ int rsnd_kctrl_new(struct rsnd_mod *mod, }; int ret; + /* + * 1) Avoid duplicate register (ex. MIXer case) + * 2) re-register if card was rebinded + */ + list_for_each_entry(kctrl, &card->controls, list) { + struct rsnd_kctrl_cfg *c = kctrl->private_data; + + if (strcmp(kctrl->id.name, name) == 0 && + c->mod == mod) + return 0; + } + if (size > RSND_MAX_CHANNELS) return -EINVAL; |