[ALSA] Add const prefix
Control Midlevel
Add const prefix to snd_kcontrol_new_t pointer for better protection.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/include/sound/control.h b/include/sound/control.h
index 7b9444c..ef7903c 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -106,7 +106,7 @@
void snd_ctl_notify(snd_card_t * card, unsigned int mask, snd_ctl_elem_id_t * id);
snd_kcontrol_t *snd_ctl_new(snd_kcontrol_t * kcontrol, unsigned int access);
-snd_kcontrol_t *snd_ctl_new1(snd_kcontrol_new_t * kcontrolnew, void * private_data);
+snd_kcontrol_t *snd_ctl_new1(const snd_kcontrol_new_t * kcontrolnew, void * private_data);
void snd_ctl_free_one(snd_kcontrol_t * kcontrol);
int snd_ctl_add(snd_card_t * card, snd_kcontrol_t * kcontrol);
int snd_ctl_remove(snd_card_t * card, snd_kcontrol_t * kcontrol);
diff --git a/sound/core/control.c b/sound/core/control.c
index 4e39a21..227f3cf 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -215,7 +215,7 @@
*
* Returns the pointer of the newly generated instance, or NULL on failure.
*/
-snd_kcontrol_t *snd_ctl_new1(snd_kcontrol_new_t * ncontrol, void *private_data)
+snd_kcontrol_t *snd_ctl_new1(const snd_kcontrol_new_t * ncontrol, void *private_data)
{
snd_kcontrol_t kctl;
unsigned int access;