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authorTakashi Iwai <tiwai@suse.de>2019-02-04 16:07:35 +0100
committerTakashi Iwai <tiwai@suse.de>2019-02-06 18:11:57 +0100
commit7449054af0dcfa2839bb2da0a393bd35cf08daff (patch)
tree3b83650e4a1b82e7c922b4658f9d815542386267 /sound/usb
parent3c6ee77088a9b5188d065780b1c540f5e3d879c8 (diff)
downloadlinux-7449054af0dcfa2839bb2da0a393bd35cf08daff.tar.gz
ALSA: usb: Clean up with new procfs helpers
Simplify the proc fs creation code with new helper functions,
snd_card_ro_proc_new() and snd_card_rw_proc_new().
Just a code refactoring and no functional changes.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
-rw-r--r--sound/usb/mixer.c7
-rw-r--r--sound/usb/mixer_quirks.c6
-rw-r--r--sound/usb/proc.c13
3 files changed, 10 insertions, 16 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 8ad1a24c8f28..73d7dff425c1 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -3441,7 +3441,6 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
 		.dev_free = snd_usb_mixer_dev_free
 	};
 	struct usb_mixer_interface *mixer;
-	struct snd_info_entry *entry;
 	int err;
 
 	strcpy(chip->card->mixername, "USB Mixer");
@@ -3497,9 +3496,9 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
 	if (err < 0)
 		goto _error;
 
-	if (list_empty(&chip->mixer_list) &&
-	    !snd_card_proc_new(chip->card, "usbmixer", &entry))
-		snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read);
+	if (list_empty(&chip->mixer_list))
+		snd_card_ro_proc_new(chip->card, "usbmixer", chip,
+				     snd_usb_mixer_proc_read);
 
 	list_add(&mixer->list, &chip->mixer_list);
 	return 0;
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 85ae0ff2382a..a751a18ca4c2 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -2195,7 +2195,6 @@ static int snd_rme_controls_create(struct usb_mixer_interface *mixer)
 int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
 {
 	int err = 0;
-	struct snd_info_entry *entry;
 
 	err = snd_usb_soundblaster_remote_init(mixer);
 	if (err < 0)
@@ -2214,9 +2213,8 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
 		err = snd_audigy2nx_controls_create(mixer);
 		if (err < 0)
 			break;
-		if (!snd_card_proc_new(mixer->chip->card, "audigy2nx", &entry))
-			snd_info_set_text_ops(entry, mixer,
-					      snd_audigy2nx_proc_read);
+		snd_card_ro_proc_new(mixer->chip->card, "audigy2nx",
+				     mixer, snd_audigy2nx_proc_read);
 		break;
 
 	/* EMU0204 */
diff --git a/sound/usb/proc.c b/sound/usb/proc.c
index 0ac89e294d31..e80c9d0749c9 100644
--- a/sound/usb/proc.c
+++ b/sound/usb/proc.c
@@ -61,11 +61,10 @@ static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_
 
 void snd_usb_audio_create_proc(struct snd_usb_audio *chip)
 {
-	struct snd_info_entry *entry;
-	if (!snd_card_proc_new(chip->card, "usbbus", &entry))
-		snd_info_set_text_ops(entry, chip, proc_audio_usbbus_read);
-	if (!snd_card_proc_new(chip->card, "usbid", &entry))
-		snd_info_set_text_ops(entry, chip, proc_audio_usbid_read);
+	snd_card_ro_proc_new(chip->card, "usbbus", chip,
+			     proc_audio_usbbus_read);
+	snd_card_ro_proc_new(chip->card, "usbid", chip,
+			     proc_audio_usbid_read);
 }
 
 /*
@@ -167,12 +166,10 @@ static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_b
 
 void snd_usb_proc_pcm_format_add(struct snd_usb_stream *stream)
 {
-	struct snd_info_entry *entry;
 	char name[32];
 	struct snd_card *card = stream->chip->card;
 
 	sprintf(name, "stream%d", stream->pcm_index);
-	if (!snd_card_proc_new(card, name, &entry))
-		snd_info_set_text_ops(entry, stream, proc_pcm_format_read);
+	snd_card_ro_proc_new(card, name, stream, proc_pcm_format_read);
 }