ALSA: pcm: Make constraints lists const

They aren't modified by the core so the drivers can declare them const.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 68372bc1e11b..e91e6047ca6f 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -810,7 +810,7 @@ int snd_pcm_hw_constraint_integer(struct snd_pcm_runtime *runtime, snd_pcm_hw_pa
 int snd_pcm_hw_constraint_list(struct snd_pcm_runtime *runtime, 
                                unsigned int cond,
                                snd_pcm_hw_param_t var,
-                               struct snd_pcm_hw_constraint_list *l);
+                               const struct snd_pcm_hw_constraint_list *l);
 int snd_pcm_hw_constraint_ratnums(struct snd_pcm_runtime *runtime, 
                                   unsigned int cond,
                                   snd_pcm_hw_param_t var,