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ALSA: cs4281: Remove always NULL parameters

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snd_cs4281_pcm() and snd_cs4281_midi() take a pointer to a pointer of a
PCM/MIDI object where if this parameter is provided the newly allocated
object is stored. All callers pass NULL though, so remove the parameter.
This makes the code a bit shorter and cleaner.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Lars-Peter Clausen 2015-01-02 12:24:46 +01:00 committed by Takashi Iwai
parent d18132aa15
commit 3e4f4776f4
1 changed files with 4 additions and 14 deletions
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18
sound/pci/cs4281.c
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@ -973,14 +973,11 @@ static struct snd_pcm_ops snd_cs4281_capture_ops = {
.pointer = snd_cs4281_pointer,
};
static int snd_cs4281_pcm(struct cs4281 *chip, int device,
struct snd_pcm **rpcm)
static int snd_cs4281_pcm(struct cs4281 *chip, int device)
{
struct snd_pcm *pcm;
int err;
if (rpcm)
*rpcm = NULL;
err = snd_pcm_new(chip->card, "CS4281", device, 1, 1, &pcm);
if (err < 0)
return err;
@ -996,8 +993,6 @@ static int snd_cs4281_pcm(struct cs4281 *chip, int device,
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci), 64*1024, 512*1024);
if (rpcm)
*rpcm = pcm;
return 0;
}
@ -1788,14 +1783,11 @@ static struct snd_rawmidi_ops snd_cs4281_midi_input =
.trigger = snd_cs4281_midi_input_trigger,
};
static int snd_cs4281_midi(struct cs4281 *chip, int device,
struct snd_rawmidi **rrawmidi)
static int snd_cs4281_midi(struct cs4281 *chip, int device)
{
struct snd_rawmidi *rmidi;
int err;
if (rrawmidi)
*rrawmidi = NULL;
if ((err = snd_rawmidi_new(chip->card, "CS4281", device, 1, 1, &rmidi)) < 0)
return err;
strcpy(rmidi->name, "CS4281");
@ -1804,8 +1796,6 @@ static int snd_cs4281_midi(struct cs4281 *chip, int device,
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX;
rmidi->private_data = chip;
chip->rmidi = rmidi;
if (rrawmidi)
*rrawmidi = rmidi;
return 0;
}
@ -1941,11 +1931,11 @@ static int snd_cs4281_probe(struct pci_dev *pci,
snd_card_free(card);
return err;
}
if ((err = snd_cs4281_pcm(chip, 0, NULL)) < 0) {
if ((err = snd_cs4281_pcm(chip, 0)) < 0) {
snd_card_free(card);
return err;
}
if ((err = snd_cs4281_midi(chip, 0, NULL)) < 0) {
if ((err = snd_cs4281_midi(chip, 0)) < 0) {
snd_card_free(card);
return err;
}