1 // SPDX-License-Identifier: GPL-2.0-only
8 #include <linux/mtd/mtd.h>
9 #include <linux/mtd/partitions.h>
21 static void *mtd_parser_tplink_safeloader_read_table(struct mtd_info *mtd)  in mtd_parser_tplink_safeloader_read_table()  argument
31 	np = mtd_get_of_node(mtd);  in mtd_parser_tplink_safeloader_read_table()
32 	if (mtd_is_partition(mtd))  in mtd_parser_tplink_safeloader_read_table()
37 	if (of_property_read_u32(np, "partitions-table-offset", &offset)) {  in mtd_parser_tplink_safeloader_read_table()
42 	err = mtd_read(mtd, offset, sizeof(hdr), &bytes_read, (uint8_t *)&hdr);  in mtd_parser_tplink_safeloader_read_table()
44 		pr_err("Failed to read from %s at 0x%x\n", mtd->name, offset);  in mtd_parser_tplink_safeloader_read_table()
54 	err = mtd_read(mtd, offset + sizeof(hdr), size, &bytes_read, buf);  in mtd_parser_tplink_safeloader_read_table()
56 		pr_err("Failed to read from %s at 0x%zx\n", mtd->name, offset + sizeof(hdr));  in mtd_parser_tplink_safeloader_read_table()
73 static int mtd_parser_tplink_safeloader_parse(struct mtd_info *mtd,  in mtd_parser_tplink_safeloader_parse()  argument
78 	char name[65];  in mtd_parser_tplink_safeloader_parse()  local
87 		err = -ENOMEM;  in mtd_parser_tplink_safeloader_parse()
91 	buf = mtd_parser_tplink_safeloader_read_table(mtd);  in mtd_parser_tplink_safeloader_parse()
93 		err = -ENOENT;  in mtd_parser_tplink_safeloader_parse()
100 		    name, &parts[idx].offset, &parts[idx].size, &bytes) == 3;  in mtd_parser_tplink_safeloader_parse()
102 		parts[idx].name = kstrdup(name, GFP_KERNEL);  in mtd_parser_tplink_safeloader_parse()
103 		if (!parts[idx].name) {  in mtd_parser_tplink_safeloader_parse()
104 			err = -ENOMEM;  in mtd_parser_tplink_safeloader_parse()
119 	for (idx -= 1; idx >= 0; idx--)  in mtd_parser_tplink_safeloader_parse()
120 		kfree(parts[idx].name);  in mtd_parser_tplink_safeloader_parse()
133 		kfree(pparts[i].name);  in mtd_parser_tplink_safeloader_cleanup()
139 	{ .compatible = "tplink,safeloader-partitions" },
147 	.name = "tplink-safeloader",
152 MODULE_DESCRIPTION("TP-Link Safeloader partitions parser");