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Diffstat (limited to 'drivers/mtd/mtdpart.c')
-rw-r--r--drivers/mtd/mtdpart.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index c0d464d192ee..2ad9493703f9 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -369,6 +369,35 @@ static inline void free_partition(struct mtd_part *p)
kfree(p);
}
+/**
+ * mtd_parse_part - parse MTD partition looking for subpartitions
+ *
+ * @slave: part that is supposed to be a container and should be parsed
+ * @types: NULL-terminated array with names of partition parsers to try
+ *
+ * Some partitions are kind of containers with extra subpartitions (volumes).
+ * There can be various formats of such containers. This function tries to use
+ * specified parsers to analyze given partition and registers found
+ * subpartitions on success.
+ */
+static int mtd_parse_part(struct mtd_part *slave, const char *const *types)
+{
+ struct mtd_partitions parsed;
+ int err;
+
+ err = parse_mtd_partitions(&slave->mtd, types, &parsed, NULL);
+ if (err)
+ return err;
+ else if (!parsed.nr_parts)
+ return -ENOENT;
+
+ err = add_mtd_partitions(&slave->mtd, parsed.parts, parsed.nr_parts);
+
+ mtd_part_parser_cleanup(&parsed);
+
+ return err;
+}
+
static struct mtd_part *allocate_partition(struct mtd_info *parent,
const struct mtd_partition *part, int partno,
uint64_t cur_offset)
@@ -758,6 +787,8 @@ int add_mtd_partitions(struct mtd_info *master,
add_mtd_device(&slave->mtd);
mtd_add_partition_attrs(slave);
+ if (parts[i].types)
+ mtd_parse_part(slave, parts[i].types);
cur_offset = slave->offset + slave->mtd.size;
}