[alsa-devel] [PATCH 21/21] ALSA: ymfpci: Remove always NULL parameters
Lars-Peter Clausen
lars at metafoo.de
Fri Jan 2 12:24:55 CET 2015
The various PCM allocation functions in this driver take a pointer to a
pointer of a PCM where if this parameter is provided the newly allocated PCM
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/ymfpci/ymfpci.c | 8 ++++----
sound/pci/ymfpci/ymfpci.h | 8 ++++----
sound/pci/ymfpci/ymfpci_main.c | 38 ++++++--------------------------------
3 files changed, 14 insertions(+), 40 deletions(-)
diff --git a/sound/pci/ymfpci/ymfpci.c b/sound/pci/ymfpci/ymfpci.c
index 47a1923..812e27a 100644
--- a/sound/pci/ymfpci/ymfpci.c
+++ b/sound/pci/ymfpci/ymfpci.c
@@ -283,11 +283,11 @@ static int snd_card_ymfpci_probe(struct pci_dev *pci,
card->shortname,
chip->reg_area_phys,
chip->irq);
- if ((err = snd_ymfpci_pcm(chip, 0, NULL)) < 0) {
+ if ((err = snd_ymfpci_pcm(chip, 0)) < 0) {
snd_card_free(card);
return err;
}
- if ((err = snd_ymfpci_pcm_spdif(chip, 1, NULL)) < 0) {
+ if ((err = snd_ymfpci_pcm_spdif(chip, 1)) < 0) {
snd_card_free(card);
return err;
}
@@ -297,12 +297,12 @@ static int snd_card_ymfpci_probe(struct pci_dev *pci,
return err;
}
if (chip->ac97->ext_id & AC97_EI_SDAC) {
- err = snd_ymfpci_pcm_4ch(chip, 2, NULL);
+ err = snd_ymfpci_pcm_4ch(chip, 2);
if (err < 0) {
snd_card_free(card);
return err;
}
- err = snd_ymfpci_pcm2(chip, 3, NULL);
+ err = snd_ymfpci_pcm2(chip, 3);
if (err < 0) {
snd_card_free(card);
return err;
diff --git a/sound/pci/ymfpci/ymfpci.h b/sound/pci/ymfpci/ymfpci.h
index 4631a23..149d4cb 100644
--- a/sound/pci/ymfpci/ymfpci.h
+++ b/sound/pci/ymfpci/ymfpci.h
@@ -379,10 +379,10 @@ void snd_ymfpci_free_gameport(struct snd_ymfpci *chip);
extern const struct dev_pm_ops snd_ymfpci_pm;
-int snd_ymfpci_pcm(struct snd_ymfpci *chip, int device, struct snd_pcm **rpcm);
-int snd_ymfpci_pcm2(struct snd_ymfpci *chip, int device, struct snd_pcm **rpcm);
-int snd_ymfpci_pcm_spdif(struct snd_ymfpci *chip, int device, struct snd_pcm **rpcm);
-int snd_ymfpci_pcm_4ch(struct snd_ymfpci *chip, int device, struct snd_pcm **rpcm);
+int snd_ymfpci_pcm(struct snd_ymfpci *chip, int device);
+int snd_ymfpci_pcm2(struct snd_ymfpci *chip, int device);
+int snd_ymfpci_pcm_spdif(struct snd_ymfpci *chip, int device);
+int snd_ymfpci_pcm_4ch(struct snd_ymfpci *chip, int device);
int snd_ymfpci_mixer(struct snd_ymfpci *chip, int rear_switch);
int snd_ymfpci_timer(struct snd_ymfpci *chip, int device);
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index 81c916a..f5581a9 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -1145,13 +1145,11 @@ static struct snd_pcm_ops snd_ymfpci_capture_rec_ops = {
.pointer = snd_ymfpci_capture_pointer,
};
-int snd_ymfpci_pcm(struct snd_ymfpci *chip, int device, struct snd_pcm **rpcm)
+int snd_ymfpci_pcm(struct snd_ymfpci *chip, int device)
{
struct snd_pcm *pcm;
int err;
- if (rpcm)
- *rpcm = NULL;
if ((err = snd_pcm_new(chip->card, "YMFPCI", device, 32, 1, &pcm)) < 0)
return err;
pcm->private_data = chip;
@@ -1167,14 +1165,8 @@ int snd_ymfpci_pcm(struct snd_ymfpci *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);
- err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
snd_pcm_std_chmaps, 2, 0, NULL);
- if (err < 0)
- return err;
-
- if (rpcm)
- *rpcm = pcm;
- return 0;
}
static struct snd_pcm_ops snd_ymfpci_capture_ac97_ops = {
@@ -1188,13 +1180,11 @@ static struct snd_pcm_ops snd_ymfpci_capture_ac97_ops = {
.pointer = snd_ymfpci_capture_pointer,
};
-int snd_ymfpci_pcm2(struct snd_ymfpci *chip, int device, struct snd_pcm **rpcm)
+int snd_ymfpci_pcm2(struct snd_ymfpci *chip, int device)
{
struct snd_pcm *pcm;
int err;
- if (rpcm)
- *rpcm = NULL;
if ((err = snd_pcm_new(chip->card, "YMFPCI - PCM2", device, 0, 1, &pcm)) < 0)
return err;
pcm->private_data = chip;
@@ -1210,8 +1200,6 @@ int snd_ymfpci_pcm2(struct snd_ymfpci *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;
}
@@ -1226,14 +1214,11 @@ static struct snd_pcm_ops snd_ymfpci_playback_spdif_ops = {
.pointer = snd_ymfpci_playback_pointer,
};
-int snd_ymfpci_pcm_spdif(struct snd_ymfpci *chip, int device,
- struct snd_pcm **rpcm)
+int snd_ymfpci_pcm_spdif(struct snd_ymfpci *chip, int device)
{
struct snd_pcm *pcm;
int err;
- if (rpcm)
- *rpcm = NULL;
if ((err = snd_pcm_new(chip->card, "YMFPCI - IEC958", device, 1, 0, &pcm)) < 0)
return err;
pcm->private_data = chip;
@@ -1248,8 +1233,6 @@ int snd_ymfpci_pcm_spdif(struct snd_ymfpci *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;
}
@@ -1272,14 +1255,11 @@ static const struct snd_pcm_chmap_elem surround_map[] = {
{ }
};
-int snd_ymfpci_pcm_4ch(struct snd_ymfpci *chip, int device,
- struct snd_pcm **rpcm)
+int snd_ymfpci_pcm_4ch(struct snd_ymfpci *chip, int device)
{
struct snd_pcm *pcm;
int err;
- if (rpcm)
- *rpcm = NULL;
if ((err = snd_pcm_new(chip->card, "YMFPCI - Rear", device, 1, 0, &pcm)) < 0)
return err;
pcm->private_data = chip;
@@ -1294,14 +1274,8 @@ int snd_ymfpci_pcm_4ch(struct snd_ymfpci *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);
- err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
surround_map, 2, 0, NULL);
- if (err < 0)
- return err;
-
- if (rpcm)
- *rpcm = pcm;
- return 0;
}
static int snd_ymfpci_spdif_default_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
--
1.8.0
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