C++ (Cpp) sysfs_get_target_pathの例

コード例 #1

ファイル: symlink.c プロジェクト: 458941968/mini2440-kernel-2.6.29

static int sysfs_getlink(struct dentry *dentry, char * path)
{
	struct sysfs_dirent *sd = dentry->d_fsdata;
	struct sysfs_dirent *parent_sd = sd->s_parent;
	struct sysfs_dirent *target_sd = sd->s_symlink.target_sd;
	int error;

	mutex_lock(&sysfs_mutex);
	error = sysfs_get_target_path(parent_sd, target_sd, path);
	mutex_unlock(&sysfs_mutex);

	return error;
}

コード例 #2

static int sysfs_getlink(struct dentry *dentry, char * path)
{
	struct kobject *kobj, *target_kobj;
	int error = 0;

	kobj = sysfs_get_kobject(dentry->d_parent);
	if (!kobj)
		return -EINVAL;

	target_kobj = sysfs_get_kobject(dentry);
	if (!target_kobj) {
		kobject_put(kobj);
		return -EINVAL;
	}

	down_read(&sysfs_rename_sem);
	error = sysfs_get_target_path(kobj, target_kobj, path);
	up_read(&sysfs_rename_sem);
	
	kobject_put(kobj);
	kobject_put(target_kobj);
	return error;

}