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| author | Takashi Iwai <tiwai@suse.de> | 2015-01-25 18:41:26 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-01-28 07:22:16 +0100 |
| commit | d6ca69d82522cb0e59777deea3673c85c7db7f45 (patch) | |
| tree | 8d8c17684038092645cc2ff497ff2c266d703df1 /sound | |
| parent | aca514b82356dcc3575da33453382bd27593aea1 (diff) | |
| download | linux-d6ca69d82522cb0e59777deea3673c85c7db7f45.tar.gz linux-d6ca69d82522cb0e59777deea3673c85c7db7f45.tar.bz2 linux-d6ca69d82522cb0e59777deea3673c85c7db7f45.zip | |
ALSA: line6: Minor tidy up in line6_probe()
Move the check of multi configurations before snd_card_new() as a
short path, and reduce superfluous pointer references.
Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/usb/line6/driver.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c index c696f9773cbb..a0436993a167 100644 --- a/sound/usb/line6/driver.c +++ b/sound/usb/line6/driver.c @@ -495,6 +495,10 @@ int line6_probe(struct usb_interface *interface, if (WARN_ON(data_size < sizeof(*line6))) return -EINVAL; + /* we don't handle multiple configurations */ + if (usbdev->descriptor.bNumConfigurations != 1) + return -ENODEV; + ret = snd_card_new(&interface->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, THIS_MODULE, data_size, &card); @@ -508,10 +512,10 @@ int line6_probe(struct usb_interface *interface, line6->usbdev = usbdev; line6->ifcdev = &interface->dev; - strcpy(card->id, line6->properties->id); + strcpy(card->id, properties->id); strcpy(card->driver, DRIVER_NAME); - strcpy(card->shortname, line6->properties->name); - sprintf(card->longname, "Line 6 %s at USB %s", line6->properties->name, + strcpy(card->shortname, properties->name); + sprintf(card->longname, "Line 6 %s at USB %s", properties->name, dev_name(line6->ifcdev)); card->private_free = line6_destruct; @@ -520,12 +524,6 @@ int line6_probe(struct usb_interface *interface, /* increment reference counters: */ usb_get_dev(usbdev); - /* we don't handle multiple configurations */ - if (usbdev->descriptor.bNumConfigurations != 1) { - ret = -ENODEV; - goto error; - } - /* initialize device info: */ dev_info(&interface->dev, "Line 6 %s found\n", properties->name); @@ -533,7 +531,7 @@ int line6_probe(struct usb_interface *interface, interface_number = interface->cur_altsetting->desc.bInterfaceNumber; ret = usb_set_interface(usbdev, interface_number, - properties->altsetting); + properties->altsetting); if (ret < 0) { dev_err(&interface->dev, "set_interface failed\n"); goto error; @@ -555,7 +553,7 @@ int line6_probe(struct usb_interface *interface, /* creation of additional special files should go here */ dev_info(&interface->dev, "Line 6 %s now attached\n", - line6->properties->name); + properties->name); return 0; |