snd_assert(device_data != NULL, return -ENXIO);
snd_assert(ops != NULL, return -ENXIO);
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
- if (dev == NULL)
+ if (dev == NULL) {
+ snd_printk(KERN_ERR "Cannot allocate device\n");
return -ENOMEM;
+ }
dev->card = card;
dev->type = type;
dev->state = SNDRV_DEV_BUILD;
return 0;
}
+EXPORT_SYMBOL(snd_device_new);
+
/**
* snd_device_free - release the device from the card
* @card: the card instance
* @device_data: the data pointer to release
*
* Removes the device from the list on the card and invokes the
- * callback, dev_unregister or dev_free, corresponding to the state.
+ * callbacks, dev_disconnect and dev_free, corresponding to the state.
* Then release the device.
*
* Returns zero if successful, or a negative error code on failure or if the
continue;
/* unlink */
list_del(&dev->list);
- if ((dev->state == SNDRV_DEV_REGISTERED ||
- dev->state == SNDRV_DEV_DISCONNECTED) &&
- dev->ops->dev_unregister) {
- if (dev->ops->dev_unregister(dev))
- snd_printk(KERN_ERR "device unregister failure\n");
- } else {
- if (dev->ops->dev_free) {
- if (dev->ops->dev_free(dev))
- snd_printk(KERN_ERR "device free failure\n");
- }
+ if (dev->state == SNDRV_DEV_REGISTERED &&
+ dev->ops->dev_disconnect)
+ if (dev->ops->dev_disconnect(dev))
+ snd_printk(KERN_ERR
+ "device disconnect failure\n");
+ if (dev->ops->dev_free) {
+ if (dev->ops->dev_free(dev))
+ snd_printk(KERN_ERR "device free failure\n");
}
kfree(dev);
return 0;
return -ENXIO;
}
+EXPORT_SYMBOL(snd_device_free);
+
/**
* snd_device_disconnect - disconnect the device
* @card: the card instance
dev->state = SNDRV_DEV_REGISTERED;
return 0;
}
+ snd_printd("snd_device_register busy\n");
return -EBUSY;
}
snd_BUG();
return -ENXIO;
}
+EXPORT_SYMBOL(snd_device_register);
+
/*
* register all the devices on the card.
* called from init.c