ALSA: hda - Constify some API function arguments

Signed-off-by: Takashi Iwai <tiwai@suse.de>

2 files changed, 5 insertions, 4 deletions

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 2c40e415852b..d1a2351aabfa 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -3872,7 +3872,8 @@ EXPORT_SYMBOL_HDA(snd_hda_check_board_codec_sid_config);
  *
  * Returns 0 if successful, or a negative error code.
  */
-int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
+int snd_hda_add_new_ctls(struct hda_codec *codec,
+                         const struct snd_kcontrol_new *knew)
 {
         int err;
 
@@ -4015,7 +4016,7 @@ int snd_hda_check_amp_list_power(struct hda_codec *codec,
                                  struct hda_loopback_check *check,
                                  hda_nid_t nid)
 {
-        struct hda_amp_list *p;
+        const struct hda_amp_list *p;
         int ch, v;
 
         if (!check->amplist)
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index ff5e2ac2239a..f36af375abbf 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -347,7 +347,7 @@ int snd_hda_check_board_codec_sid_config(struct hda_codec *codec,
                                int num_configs, const char * const *models,
                                const struct snd_pci_quirk *tbl);
 int snd_hda_add_new_ctls(struct hda_codec *codec,
-                         struct snd_kcontrol_new *knew);
+                         const struct snd_kcontrol_new *knew);
 
 /*
  * unsolicited event handler
@@ -567,7 +567,7 @@ struct hda_amp_list {
 };
 
 struct hda_loopback_check {
-        struct hda_amp_list *amplist;
+        const struct hda_amp_list *amplist;
         int power_on;
 };