C++ (Cpp) snd_card_file_remove Examples

Example #1

File: mixer_oss.c Project: Core2idiot/Kernel-Samsung-3.0...-

static int snd_mixer_oss_open(struct inode *inode, struct file *file)
{
	struct snd_card *card;
	struct snd_mixer_oss_file *fmixer;
	int err;

	err = nonseekable_open(inode, file);
	if (err < 0)
		return err;

	card = snd_lookup_oss_minor_data(iminor(inode),
					 SNDRV_OSS_DEVICE_TYPE_MIXER);
	if (card == NULL)
		return -ENODEV;
	if (card->mixer_oss == NULL)
		return -ENODEV;
	err = snd_card_file_add(card, file);
	if (err < 0)
		return err;
	fmixer = kzalloc(sizeof(*fmixer), GFP_KERNEL);
	if (fmixer == NULL) {
		snd_card_file_remove(card, file);
		return -ENOMEM;
	}
	fmixer->card = card;
	fmixer->mixer = card->mixer_oss;
	file->private_data = fmixer;
	if (!try_module_get(card->module)) {
		kfree(fmixer);
		snd_card_file_remove(card, file);
		return -EFAULT;
	}
	return 0;
}

Example #2

File: hwdep.c Project: BackupTheBerlios/tew632-brp-svn

static int snd_hwdep_release(struct inode *inode, struct file * file)
{
	int err = -ENXIO;
	snd_hwdep_t *hw = file->private_data;
	down(&hw->open_mutex);
	if (hw->ops.release) {
		err = hw->ops.release(hw, file);
		wake_up(&hw->open_wait);
	}
	if (hw->used > 0)
		hw->used--;
	snd_card_file_remove(hw->card, file);
	up(&hw->open_mutex);
	module_put(hw->card->module);
	return err;
}

Example #3

File: hwdep.c Project: Nothing-Dev/android_kernel_lge_jagnm_lp

static int snd_hwdep_release(struct inode *inode, struct file * file)
{
	int err = 0;
	struct snd_hwdep *hw = file->private_data;
	struct module *mod = hw->card->module;

	mutex_lock(&hw->open_mutex);
	if (hw->ops.release)
		err = hw->ops.release(hw, file);
	if (hw->used > 0)
		hw->used--;
	mutex_unlock(&hw->open_mutex);
	wake_up(&hw->open_wait);

	snd_card_file_remove(hw->card, file);
	module_put(mod);
	return err;
}