[PATCH 08/11] ALSA: control: Make snd_ctl_find_id() argument const

[Takashi Iwai <tiwai@suse.de>]

The id object passed to snd_ctl_find_id() is only read, and we can
mark it with const gracefully.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/control.h | 2 +-
 sound/core/control.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/sound/control.h b/include/sound/control.h
index cc3dcc6cfb0f..e61b749bf204 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -141,7 +141,7 @@ int snd_ctl_rename_id(struct snd_card * card, struct snd_ctl_elem_id *src_id, st
 void snd_ctl_rename(struct snd_card *card, struct snd_kcontrol *kctl, const char *name);
 int snd_ctl_activate_id(struct snd_card *card, struct snd_ctl_elem_id *id, int active);
 struct snd_kcontrol *snd_ctl_find_numid(struct snd_card * card, unsigned int numid);
-struct snd_kcontrol *snd_ctl_find_id(struct snd_card * card, struct snd_ctl_elem_id *id);
+struct snd_kcontrol *snd_ctl_find_id(struct snd_card *card, const struct snd_ctl_elem_id *id);
 
 int snd_ctl_create(struct snd_card *card);
 
diff --git a/sound/core/control.c b/sound/core/control.c
index 8aaa2a84a670..180e5768a10f 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -858,7 +858,7 @@ EXPORT_SYMBOL(snd_ctl_find_numid);
  *
  */
 struct snd_kcontrol *snd_ctl_find_id(struct snd_card *card,
-				     struct snd_ctl_elem_id *id)
+				     const struct snd_ctl_elem_id *id)
 {
 	struct snd_kcontrol *kctl;
 
-- 
2.35.3