[alsa-devel] [PATCH 13/21] ALSA: cs46xx: Remove always NULL parameters
Lars-Peter Clausen
lars at metafoo.de
Fri Jan 2 12:24:47 CET 2015
The various PCM and MIDI allocation functions in this driver 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 at metafoo.de>
---
sound/pci/cs46xx/cs46xx.c | 10 +++++-----
sound/pci/cs46xx/cs46xx.h | 10 +++++-----
sound/pci/cs46xx/cs46xx_lib.c | 40 +++++-----------------------------------
3 files changed, 15 insertions(+), 45 deletions(-)
diff --git a/sound/pci/cs46xx/cs46xx.c b/sound/pci/cs46xx/cs46xx.c
index 6a6858c..655fbea 100644
--- a/sound/pci/cs46xx/cs46xx.c
+++ b/sound/pci/cs46xx/cs46xx.c
@@ -100,16 +100,16 @@ static int snd_card_cs46xx_probe(struct pci_dev *pci,
}
card->private_data = chip;
chip->accept_valid = mmap_valid[dev];
- if ((err = snd_cs46xx_pcm(chip, 0, NULL)) < 0) {
+ if ((err = snd_cs46xx_pcm(chip, 0)) < 0) {
snd_card_free(card);
return err;
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
- if ((err = snd_cs46xx_pcm_rear(chip,1, NULL)) < 0) {
+ if ((err = snd_cs46xx_pcm_rear(chip, 1)) < 0) {
snd_card_free(card);
return err;
}
- if ((err = snd_cs46xx_pcm_iec958(chip,2,NULL)) < 0) {
+ if ((err = snd_cs46xx_pcm_iec958(chip, 2)) < 0) {
snd_card_free(card);
return err;
}
@@ -120,13 +120,13 @@ static int snd_card_cs46xx_probe(struct pci_dev *pci,
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
if (chip->nr_ac97_codecs ==2) {
- if ((err = snd_cs46xx_pcm_center_lfe(chip,3,NULL)) < 0) {
+ if ((err = snd_cs46xx_pcm_center_lfe(chip, 3)) < 0) {
snd_card_free(card);
return err;
}
}
#endif
- if ((err = snd_cs46xx_midi(chip, 0, NULL)) < 0) {
+ if ((err = snd_cs46xx_midi(chip, 0)) < 0) {
snd_card_free(card);
return err;
}
diff --git a/sound/pci/cs46xx/cs46xx.h b/sound/pci/cs46xx/cs46xx.h
index c49a082..9c9f89a 100644
--- a/sound/pci/cs46xx/cs46xx.h
+++ b/sound/pci/cs46xx/cs46xx.h
@@ -1737,12 +1737,12 @@ int snd_cs46xx_create(struct snd_card *card,
struct snd_cs46xx **rcodec);
extern const struct dev_pm_ops snd_cs46xx_pm;
-int snd_cs46xx_pcm(struct snd_cs46xx *chip, int device, struct snd_pcm **rpcm);
-int snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device, struct snd_pcm **rpcm);
-int snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device, struct snd_pcm **rpcm);
-int snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device, struct snd_pcm **rpcm);
+int snd_cs46xx_pcm(struct snd_cs46xx *chip, int device);
+int snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device);
+int snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device);
+int snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device);
int snd_cs46xx_mixer(struct snd_cs46xx *chip, int spdif_device);
-int snd_cs46xx_midi(struct snd_cs46xx *chip, int device, struct snd_rawmidi **rmidi);
+int snd_cs46xx_midi(struct snd_cs46xx *chip, int device);
int snd_cs46xx_start_dsp(struct snd_cs46xx *chip);
int snd_cs46xx_gameport(struct snd_cs46xx *chip);
diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
index 32b44f2..dfec84e 100644
--- a/sound/pci/cs46xx/cs46xx_lib.c
+++ b/sound/pci/cs46xx/cs46xx_lib.c
@@ -1778,13 +1778,11 @@ static struct snd_pcm_ops snd_cs46xx_capture_indirect_ops = {
#define MAX_PLAYBACK_CHANNELS 1
#endif
-int snd_cs46xx_pcm(struct snd_cs46xx *chip, int device, struct snd_pcm **rpcm)
+int snd_cs46xx_pcm(struct snd_cs46xx *chip, int device)
{
struct snd_pcm *pcm;
int err;
- if (rpcm)
- *rpcm = NULL;
if ((err = snd_pcm_new(chip->card, "CS46xx", device, MAX_PLAYBACK_CHANNELS, 1, &pcm)) < 0)
return err;
@@ -1801,23 +1799,16 @@ int snd_cs46xx_pcm(struct snd_cs46xx *chip, int device, struct snd_pcm **rpcm)
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
- if (rpcm)
- *rpcm = pcm;
-
return 0;
}
#ifdef CONFIG_SND_CS46XX_NEW_DSP
-int snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device,
- struct snd_pcm **rpcm)
+int snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device)
{
struct snd_pcm *pcm;
int err;
- if (rpcm)
- *rpcm = NULL;
-
if ((err = snd_pcm_new(chip->card, "CS46xx - Rear", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
return err;
@@ -1833,21 +1824,14 @@ int snd_cs46xx_pcm_rear(struct snd_cs46xx *chip, int device,
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
- if (rpcm)
- *rpcm = pcm;
-
return 0;
}
-int snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device,
- struct snd_pcm **rpcm)
+int snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device)
{
struct snd_pcm *pcm;
int err;
- if (rpcm)
- *rpcm = NULL;
-
if ((err = snd_pcm_new(chip->card, "CS46xx - Center LFE", device, MAX_PLAYBACK_CHANNELS, 0, &pcm)) < 0)
return err;
@@ -1863,21 +1847,14 @@ int snd_cs46xx_pcm_center_lfe(struct snd_cs46xx *chip, int device,
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
- if (rpcm)
- *rpcm = pcm;
-
return 0;
}
-int snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device,
- struct snd_pcm **rpcm)
+int snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device)
{
struct snd_pcm *pcm;
int err;
- if (rpcm)
- *rpcm = NULL;
-
if ((err = snd_pcm_new(chip->card, "CS46xx - IEC958", device, 1, 0, &pcm)) < 0)
return err;
@@ -1893,9 +1870,6 @@ int snd_cs46xx_pcm_iec958(struct snd_cs46xx *chip, int device,
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci), 64*1024, 256*1024);
- if (rpcm)
- *rpcm = pcm;
-
return 0;
}
#endif
@@ -2724,13 +2698,11 @@ static struct snd_rawmidi_ops snd_cs46xx_midi_input =
.trigger = snd_cs46xx_midi_input_trigger,
};
-int snd_cs46xx_midi(struct snd_cs46xx *chip, int device, struct snd_rawmidi **rrawmidi)
+int snd_cs46xx_midi(struct snd_cs46xx *chip, int device)
{
struct snd_rawmidi *rmidi;
int err;
- if (rrawmidi)
- *rrawmidi = NULL;
if ((err = snd_rawmidi_new(chip->card, "CS46XX", device, 1, 1, &rmidi)) < 0)
return err;
strcpy(rmidi->name, "CS46XX");
@@ -2739,8 +2711,6 @@ int snd_cs46xx_midi(struct snd_cs46xx *chip, int device, struct snd_rawmidi **rr
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 = NULL;
return 0;
}
--
1.8.0
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