[alsa-devel] [PATCH 3/3] ALSA: usb-audio: Follow standard coding style
Takashi Iwai
tiwai at suse.de
Mon May 28 11:58:21 CEST 2018
Avoid if ((err = ...) style and expand to multiple lines instead.
No change in the end result, but just the beautification.
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
sound/usb/clock.c | 18 ++++++++++--------
sound/usb/mixer.c | 25 +++++++++++++++++--------
sound/usb/mixer_quirks.c | 3 ++-
sound/usb/pcm.c | 18 ++++++++++--------
4 files changed, 39 insertions(+), 25 deletions(-)
diff --git a/sound/usb/clock.c b/sound/usb/clock.c
index 17673f37fcc8..c79749613fa6 100644
--- a/sound/usb/clock.c
+++ b/sound/usb/clock.c
@@ -443,10 +443,11 @@ static int set_sample_rate_v1(struct snd_usb_audio *chip, int iface,
data[0] = rate;
data[1] = rate >> 8;
data[2] = rate >> 16;
- if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
- USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT,
- UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep,
- data, sizeof(data))) < 0) {
+ err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
+ USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT,
+ UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep,
+ data, sizeof(data));
+ if (err < 0) {
dev_err(&dev->dev, "%d:%d: cannot set freq %d to ep %#x\n",
iface, fmt->altsetting, rate, ep);
return err;
@@ -460,10 +461,11 @@ static int set_sample_rate_v1(struct snd_usb_audio *chip, int iface,
if (chip->sample_rate_read_error > 2)
return 0;
- if ((err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC_GET_CUR,
- USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_IN,
- UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep,
- data, sizeof(data))) < 0) {
+ err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC_GET_CUR,
+ USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_IN,
+ UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep,
+ data, sizeof(data));
+ if (err < 0) {
dev_err(&dev->dev, "%d:%d: cannot get freq at ep %#x\n",
iface, fmt->altsetting, ep);
chip->sample_rate_read_error++;
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index bf74e7edc92b..898afd3001ea 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -598,7 +598,8 @@ int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list,
while (snd_ctl_find_id(mixer->chip->card, &kctl->id))
kctl->id.index++;
- if ((err = snd_ctl_add(mixer->chip->card, kctl)) < 0) {
+ err = snd_ctl_add(mixer->chip->card, kctl);
+ if (err < 0) {
usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n",
err);
return err;
@@ -1850,7 +1851,8 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid,
}
/* parse the source unit */
- if ((err = parse_audio_unit(state, hdr->bSourceID)) < 0)
+ err = parse_audio_unit(state, hdr->bSourceID);
+ if (err < 0)
return err;
/* determine the input source type and name */
@@ -2270,7 +2272,8 @@ static int build_audio_procunit(struct mixer_build *state, int unitid,
}
for (i = 0; i < num_ins; i++) {
- if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0)
+ err = parse_audio_unit(state, desc->baSourceID[i]);
+ if (err < 0)
return err;
}
@@ -2483,7 +2486,8 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid,
}
for (i = 0; i < desc->bNrInPins; i++) {
- if ((err = parse_audio_unit(state, desc->baSourceID[i])) < 0)
+ err = parse_audio_unit(state, desc->baSourceID[i]);
+ if (err < 0)
return err;
}
@@ -3310,11 +3314,16 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
if (mixer->protocol == UAC_VERSION_3 &&
chip->badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) {
- if ((err = snd_usb_mixer_controls_badd(mixer, ctrlif)) < 0)
+ err = snd_usb_mixer_controls_badd(mixer, ctrlif);
+ if (err < 0)
+ goto _error;
+ } else {
+ err = snd_usb_mixer_controls(mixer);
+ if (err < 0)
+ goto _error;
+ err = snd_usb_mixer_status_create(mixer);
+ if (err < 0)
goto _error;
- } else if ((err = snd_usb_mixer_controls(mixer)) < 0 ||
- (err = snd_usb_mixer_status_create(mixer)) < 0) {
- goto _error;
}
err = create_keep_iface_ctl(mixer);
if (err < 0)
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 1b94387e18b6..4149543f613e 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -1824,7 +1824,8 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
int err = 0;
struct snd_info_entry *entry;
- if ((err = snd_usb_soundblaster_remote_init(mixer)) < 0)
+ err = snd_usb_soundblaster_remote_init(mixer);
+ if (err < 0)
return err;
switch (mixer->chip->usb_id) {
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index a66bc717b952..897a2cbef6de 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -163,10 +163,11 @@ static int init_pitch_v1(struct snd_usb_audio *chip, int iface,
ep = get_endpoint(alts, 0)->bEndpointAddress;
data[0] = 1;
- if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
- USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT,
- UAC_EP_CS_ATTR_PITCH_CONTROL << 8, ep,
- data, sizeof(data))) < 0) {
+ err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
+ USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT,
+ UAC_EP_CS_ATTR_PITCH_CONTROL << 8, ep,
+ data, sizeof(data));
+ if (err < 0) {
usb_audio_err(chip, "%d:%d: cannot set enable PITCH\n",
iface, ep);
return err;
@@ -184,10 +185,11 @@ static int init_pitch_v2(struct snd_usb_audio *chip, int iface,
int err;
data[0] = 1;
- if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC2_CS_CUR,
- USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT,
- UAC2_EP_CS_PITCH << 8, 0,
- data, sizeof(data))) < 0) {
+ err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC2_CS_CUR,
+ USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT,
+ UAC2_EP_CS_PITCH << 8, 0,
+ data, sizeof(data));
+ if (err < 0) {
usb_audio_err(chip, "%d:%d: cannot set enable PITCH (v2)\n",
iface, fmt->altsetting);
return err;
--
2.16.3
More information about the Alsa-devel
mailing list