25 static int mtd_get_sb(struct fs_context *fc,  in mtd_get_sb()  argument
33 	sb = sget_dev(fc, MKDEV(MTD_BLOCK_MAJOR, mtd->index));  in mtd_get_sb()
57 		ret = fill_super(sb, fc);  in mtd_get_sb()
64 	BUG_ON(fc->root);  in mtd_get_sb()
65 	fc->root = dget(sb->s_root);  in mtd_get_sb()
76 static int mtd_get_sb_by_nr(struct fs_context *fc, int mtdnr,  in mtd_get_sb_by_nr()  argument
84 		errorf(fc, "MTDSB: Device #%u doesn't appear to exist\n", mtdnr);  in mtd_get_sb_by_nr()
88 	return mtd_get_sb(fc, mtd, fill_super);  in mtd_get_sb_by_nr()
93  * @fc: The filesystem context holding the parameters
96 int get_tree_mtd(struct fs_context *fc,  in get_tree_mtd()  argument
98 				struct fs_context *fc))  in get_tree_mtd()
106 	if (!fc->source)  in get_tree_mtd()
107 		return invalf(fc, "No source specified");  in get_tree_mtd()
109 	pr_debug("MTDSB: dev_name \"%s\"\n", fc->source);  in get_tree_mtd()
116 	if (fc->source[0] == 'm' &&  in get_tree_mtd()
117 	    fc->source[1] == 't' &&  in get_tree_mtd()
118 	    fc->source[2] == 'd') {  in get_tree_mtd()
119 		if (fc->source[3] == ':') {  in get_tree_mtd()
124 				 fc->source + 4);  in get_tree_mtd()
126 			mtd = get_mtd_device_nm(fc->source + 4);  in get_tree_mtd()
128 				return mtd_get_sb(fc, mtd, fill_super);  in get_tree_mtd()
130 			errorf(fc, "MTD: MTD device with name \"%s\" not found",  in get_tree_mtd()
131 			       fc->source + 4);  in get_tree_mtd()
133 		} else if (isdigit(fc->source[3])) {  in get_tree_mtd()
137 			mtdnr = simple_strtoul(fc->source + 3, &endptr, 0);  in get_tree_mtd()
141 				return mtd_get_sb_by_nr(fc, mtdnr, fill_super);  in get_tree_mtd()
150 	ret = lookup_bdev(fc->source, &dev);  in get_tree_mtd()
152 		errorf(fc, "MTD: Couldn't look up '%s': %d", fc->source, ret);  in get_tree_mtd()
158 		return mtd_get_sb_by_nr(fc, MINOR(dev), fill_super);  in get_tree_mtd()
162 	if (!(fc->sb_flags & SB_SILENT))  in get_tree_mtd()
163 		errorf(fc, "MTD: Attempt to mount non-MTD device \"%s\"",  in get_tree_mtd()
164 		       fc->source);  in get_tree_mtd()