diff options
author | Takashi Iwai <tiwai@suse.de> | 2015-01-25 17:36:29 (GMT) |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2015-01-28 06:22:07 (GMT) |
commit | aca514b82356dcc3575da33453382bd27593aea1 (patch) | |
tree | ccb08ee0c6142b905382df6d192375e5f53d257c /sound/usb | |
parent | f66fd990c5db177d6b9f0eae301ca6b15882eb2e (diff) | |
download | linux-aca514b82356dcc3575da33453382bd27593aea1.tar.xz |
ALSA: line6: Let snd_card_new() allocate private data
Instead of allocating the private data individually in each driver's
probe at first, let snd_card_new() allocate the data that is called in
line6_probe(). This simplifies the primary probe functions.
Tested-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
-rw-r--r-- | sound/usb/line6/driver.c | 25 | ||||
-rw-r--r-- | sound/usb/line6/driver.h | 4 | ||||
-rw-r--r-- | sound/usb/line6/pod.c | 9 | ||||
-rw-r--r-- | sound/usb/line6/podhd.c | 9 | ||||
-rw-r--r-- | sound/usb/line6/toneport.c | 9 | ||||
-rw-r--r-- | sound/usb/line6/variax.c | 9 |
6 files changed, 20 insertions, 45 deletions
diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c index e2fbff0..c696f97 100644 --- a/sound/usb/line6/driver.c +++ b/sound/usb/line6/driver.c @@ -418,11 +418,7 @@ EXPORT_SYMBOL_GPL(line6_read_serial_number); static void line6_destruct(struct snd_card *card) { struct usb_line6 *line6 = card->private_data; - struct usb_device *usbdev; - - if (!line6) - return; - usbdev = line6->usbdev; + struct usb_device *usbdev = line6->usbdev; /* free buffer memory first: */ kfree(line6->buffer_message); @@ -431,9 +427,6 @@ static void line6_destruct(struct snd_card *card) /* then free URBs: */ usb_free_urb(line6->urb_listen); - /* free interface data: */ - kfree(line6); - /* decrement reference counters: */ usb_put_dev(usbdev); } @@ -489,24 +482,27 @@ static int line6_init_cap_control(struct usb_line6 *line6) */ int line6_probe(struct usb_interface *interface, const struct usb_device_id *id, - struct usb_line6 *line6, const struct line6_properties *properties, - int (*private_init)(struct usb_line6 *, const struct usb_device_id *id)) + int (*private_init)(struct usb_line6 *, const struct usb_device_id *id), + size_t data_size) { struct usb_device *usbdev = interface_to_usbdev(interface); struct snd_card *card; + struct usb_line6 *line6; int interface_number; int ret; + if (WARN_ON(data_size < sizeof(*line6))) + return -EINVAL; + ret = snd_card_new(&interface->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, - THIS_MODULE, 0, &card); - if (ret < 0) { - kfree(line6); + THIS_MODULE, data_size, &card); + if (ret < 0) return ret; - } /* store basic data: */ + line6 = card->private_data; line6->card = card; line6->properties = properties; line6->usbdev = usbdev; @@ -517,7 +513,6 @@ int line6_probe(struct usb_interface *interface, strcpy(card->shortname, line6->properties->name); sprintf(card->longname, "Line 6 %s at USB %s", line6->properties->name, dev_name(line6->ifcdev)); - card->private_data = line6; card->private_free = line6_destruct; usb_set_intfdata(interface, line6); diff --git a/sound/usb/line6/driver.h b/sound/usb/line6/driver.h index 4dc6c28..fce10f1 100644 --- a/sound/usb/line6/driver.h +++ b/sound/usb/line6/driver.h @@ -181,9 +181,9 @@ extern int line6_write_data(struct usb_line6 *line6, int address, void *data, int line6_probe(struct usb_interface *interface, const struct usb_device_id *id, - struct usb_line6 *line6, const struct line6_properties *properties, - int (*private_init)(struct usb_line6 *, const struct usb_device_id *id)); + int (*private_init)(struct usb_line6 *, const struct usb_device_id *id), + size_t data_size); void line6_disconnect(struct usb_interface *interface); diff --git a/sound/usb/line6/pod.c b/sound/usb/line6/pod.c index d1e952f..6f7cd58 100644 --- a/sound/usb/line6/pod.c +++ b/sound/usb/line6/pod.c @@ -591,14 +591,9 @@ static const struct line6_properties pod_properties_table[] = { static int pod_probe(struct usb_interface *interface, const struct usb_device_id *id) { - struct usb_line6_pod *pod; - - pod = kzalloc(sizeof(*pod), GFP_KERNEL); - if (!pod) - return -ENODEV; - return line6_probe(interface, id, &pod->line6, + return line6_probe(interface, id, &pod_properties_table[id->driver_info], - pod_init); + pod_init, sizeof(struct usb_line6_pod)); } static struct usb_driver pod_driver = { diff --git a/sound/usb/line6/podhd.c b/sound/usb/line6/podhd.c index 21d7edc..43c3988 100644 --- a/sound/usb/line6/podhd.c +++ b/sound/usb/line6/podhd.c @@ -177,14 +177,9 @@ static const struct line6_properties podhd_properties_table[] = { static int podhd_probe(struct usb_interface *interface, const struct usb_device_id *id) { - struct usb_line6_podhd *podhd; - - podhd = kzalloc(sizeof(*podhd), GFP_KERNEL); - if (!podhd) - return -ENODEV; - return line6_probe(interface, id, &podhd->line6, + return line6_probe(interface, id, &podhd_properties_table[id->driver_info], - podhd_init); + podhd_init, sizeof(struct usb_line6_podhd)); } static struct usb_driver podhd_driver = { diff --git a/sound/usb/line6/toneport.c b/sound/usb/line6/toneport.c index 8e7020d..33d16ec 100644 --- a/sound/usb/line6/toneport.c +++ b/sound/usb/line6/toneport.c @@ -558,14 +558,9 @@ static const struct line6_properties toneport_properties_table[] = { static int toneport_probe(struct usb_interface *interface, const struct usb_device_id *id) { - struct usb_line6_toneport *toneport; - - toneport = kzalloc(sizeof(*toneport), GFP_KERNEL); - if (!toneport) - return -ENODEV; - return line6_probe(interface, id, &toneport->line6, + return line6_probe(interface, id, &toneport_properties_table[id->driver_info], - toneport_init); + toneport_init, sizeof(struct usb_line6_toneport)); } static struct usb_driver toneport_driver = { diff --git a/sound/usb/line6/variax.c b/sound/usb/line6/variax.c index ba6e85e..9701ffa 100644 --- a/sound/usb/line6/variax.c +++ b/sound/usb/line6/variax.c @@ -296,14 +296,9 @@ static const struct line6_properties variax_properties_table[] = { static int variax_probe(struct usb_interface *interface, const struct usb_device_id *id) { - struct usb_line6_variax *variax; - - variax = kzalloc(sizeof(*variax), GFP_KERNEL); - if (!variax) - return -ENODEV; - return line6_probe(interface, id, &variax->line6, + return line6_probe(interface, id, &variax_properties_table[id->driver_info], - variax_init); + variax_init, sizeof(struct usb_line6_variax)); } static struct usb_driver variax_driver = { |