C++ (Cpp) sysfs_remove_subdir示例

示例#1

文件： group.c 项目： maraz/linux-2.6

static int internal_create_group(struct kobject *kobj, int update,
				 const struct attribute_group *grp)
{
	struct sysfs_dirent *sd;
	int error;

	BUG_ON(!kobj || (!update && !kobj->sd));

	/* Updates may happen before the object has been instantiated */
	if (unlikely(update && !kobj->sd))
		return -EINVAL;

	if (grp->name) {
		error = sysfs_create_subdir(kobj, grp->name, &sd);
		if (error)
			return error;
	} else
		sd = kobj->sd;
	sysfs_get(sd);
	error = create_files(sd, kobj, grp, update);
	if (error) {
		if (grp->name)
			sysfs_remove_subdir(sd);
	}
	sysfs_put(sd);
	return error;
}

示例#2

文件： group.c 项目： Cool-Joe/imx23-audio

static int internal_create_group(struct kobject *kobj, int update,
				 const struct attribute_group *grp)
{
	struct sysfs_dirent *sd;
	int error;

	BUG_ON(!kobj || (!update && !kobj->sd));

	/* Updates may happen before the object has been instantiated */
	if (unlikely(update && !kobj->sd))
		return -EINVAL;
	if (!grp->attrs && !grp->bin_attrs) {
		WARN(1, "sysfs: (bin_)attrs not set by subsystem for group: %s/%s\n",
			kobj->name, grp->name ? "" : grp->name);
		return -EINVAL;
	}
	if (grp->name) {
		error = sysfs_create_subdir(kobj, grp->name, &sd);
		if (error)
			return error;
	} else
		sd = kobj->sd;
	sysfs_get(sd);
	error = create_files(sd, kobj, grp, update);
	if (error) {
		if (grp->name)
			sysfs_remove_subdir(sd);
	}
	sysfs_put(sd);
	return error;
}

示例#3

文件： group.c 项目： laitianli/kernel-analyze_linux-2.6.18

void sysfs_remove_group(struct kobject * kobj, 
			const struct attribute_group * grp)
{
	struct dentry * dir;

	if (grp->name)
		dir = lookup_one_len(grp->name, kobj->dentry,
				strlen(grp->name));
	else
		dir = dget(kobj->dentry);

	remove_files(dir,grp);
	if (grp->name)
		sysfs_remove_subdir(dir);
	/* release the ref. taken in this routine */
	dput(dir);
}

示例#4

文件： group.c 项目： PennPanda/linux-repo

void sysfs_remove_group(struct kobject * kobj, 
			const struct attribute_group * grp)
{
	struct sysfs_dirent *dir_sd = kobj->sd;
	struct sysfs_dirent *sd;

	if (grp->name) {
		sd = sysfs_get_dirent(dir_sd, grp->name);
		BUG_ON(!sd);
	} else
		sd = sysfs_get(dir_sd);

	remove_files(sd, grp);
	if (grp->name)
		sysfs_remove_subdir(sd);

	sysfs_put(sd);
}

示例#5

文件： group.c 项目： Cool-Joe/imx23-audio

void sysfs_remove_group(struct kobject * kobj, 
			const struct attribute_group * grp)
{
	struct sysfs_dirent *dir_sd = kobj->sd;
	struct sysfs_dirent *sd;

	if (grp->name) {
		sd = sysfs_get_dirent(dir_sd, NULL, grp->name);
		if (!sd) {
			WARN(!sd, KERN_WARNING "sysfs group %p not found for "
				"kobject '%s'\n", grp, kobject_name(kobj));
			return;
		}
	} else
		sd = sysfs_get(dir_sd);

	remove_files(sd, kobj, grp);
	if (grp->name)
		sysfs_remove_subdir(sd);

	sysfs_put(sd);
}

示例#6

文件： group.c 项目： laitianli/kernel-analyze_linux-2.6.18

/**ltl
 * 功能: 创建一个文件组
 * 参数:
 * 返回值:
 * 说明: 在/sys下创建一下目录，并在此目录新建文件
 */
int sysfs_create_group(struct kobject * kobj, 
		       const struct attribute_group * grp)
{
	struct dentry * dir;
	int error;

	BUG_ON(!kobj || !kobj->dentry);

	if (grp->name) { /* 创建目录 */
		error = sysfs_create_subdir(kobj,grp->name,&dir);
		if (error)
			return error;
	} else
		dir = kobj->dentry;
	dir = dget(dir);
	if ((error = create_files(dir,grp))) { /* 创建文件 */
		if (grp->name)
			sysfs_remove_subdir(dir);
	}
	dput(dir);
	return error;
}

示例#7

文件： group.c 项目： PennPanda/linux-repo

int sysfs_create_group(struct kobject * kobj, 
		       const struct attribute_group * grp)
{
	struct sysfs_dirent *sd;
	int error;

	BUG_ON(!kobj || !kobj->sd);

	if (grp->name) {
		error = sysfs_create_subdir(kobj, grp->name, &sd);
		if (error)
			return error;
	} else
		sd = kobj->sd;
	sysfs_get(sd);
	error = create_files(sd, grp);
	if (error) {
		if (grp->name)
			sysfs_remove_subdir(sd);
	}
	sysfs_put(sd);
	return error;
}