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authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-03-14 19:48:43 +0000
committerTakashi Iwai <tiwai@suse.de>2012-03-15 07:35:17 +0100
commit4af87a939ef7092fdca267fba473cf8407d6d8e2 (patch)
treeb35dac738d2e5ec6f778b3095246dbac2a1be255
parent28aa165cc52fa686a55a2a2052fdddad0fbde5eb (diff)
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>
-rw-r--r--include/sound/pcm.h5
-rw-r--r--sound/core/pcm_lib.c3
2 files changed, 5 insertions, 3 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);
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 3420bd3da5d7..4d18941178e6 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1029,7 +1029,8 @@ static int snd_interval_ratden(struct snd_interval *i,
*
* Returns non-zero if the value is changed, zero if not changed.
*/
-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)
{
unsigned int k;
struct snd_interval list_range;