mtd: switch open_mtd_by_chdev() to use of vfs_stat()

 */

static struct mtd_info * __init open_mtd_by_chdev(const char *mtd_dev)

{

	int err, major, minor, mode;

	struct path path;

	struct kstat stat;

	int err, minor;

	/* Probably this is an MTD character device node path */

	err = kern_path(mtd_dev, LOOKUP_FOLLOW, &path);

	err = vfs_stat(mtd_dev, &stat);

	if (err)

		return ERR_PTR(err);

	/* MTD device number is defined by the major / minor numbers */

	major = imajor(d_backing_inode(path.dentry));

	minor = iminor(d_backing_inode(path.dentry));

	mode = d_backing_inode(path.dentry)->i_mode;

	path_put(&path);

	if (major != MTD_CHAR_MAJOR || !S_ISCHR(mode))

	if (MAJOR(stat.rdev) != MTD_CHAR_MAJOR || !S_ISCHR(stat.mode))

		return ERR_PTR(-EINVAL);

	minor = MINOR(stat.rdev);

	if (minor & 1)

		/*

		 * Just do not think the "/dev/mtdrX" devices support is need,