ALSA: pcm: Constify the list in snd_pcm_hw_constraint_list

Allows the constraint lists to be declared const by drivers which seems
reasonable; there's plenty of other constification we could do if we were
being complete but this was easy and quick.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 3 insertions, 2 deletions

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 0cf91b2f08ca..4ae9e22c4827 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -264,7 +264,7 @@ struct snd_pcm_hw_constraint_ratdens {
 
 struct snd_pcm_hw_constraint_list {
         unsigned int count;
-        unsigned int *list;
+        const unsigned int *list;
         unsigned int mask;
 };
 
@@ -781,7 +781,8 @@ void snd_interval_muldivk(const struct snd_interval *a, const struct snd_interva
                           unsigned int k, struct snd_interval *c);
 void snd_interval_mulkdiv(const struct snd_interval *a, unsigned int k,
                           const struct snd_interval *b, struct snd_interval *c);
-int snd_interval_list(struct snd_interval *i, unsigned int count, unsigned int *list, unsigned int mask);
+int snd_interval_list(struct snd_interval *i, unsigned int count,
+                      const unsigned int *list, unsigned int mask);
 int snd_interval_ratnum(struct snd_interval *i,
                         unsigned int rats_count, struct snd_ratnum *rats,
                         unsigned int *nump, unsigned int *denp);