mtd: partitions: pass around 'mtd_partitions' wrapper struct

For some of the core partitioning code, it helps to keep info about the
parsed partition (and who parsed them) together in one place.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>

1 files changed, 8 insertions, 7 deletions

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 898999c5aea1..53517d7653cb 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -743,7 +743,7 @@ static const char * const default_mtd_part_types[] = {
  * parse_mtd_partitions - parse MTD partitions
  * @master: the master partition (describes whole MTD device)
  * @types: names of partition parsers to try or %NULL
- * @pparts: array of partitions found is returned here
+ * @pparts: info about partitions found is returned here
  * @data: MTD partition parser-specific data
  *
  * This function tries to find partition on MTD device @master. It uses MTD
@@ -755,12 +755,11 @@ static const char * const default_mtd_part_types[] = {
  *
  * This function may return:
  * o a negative error code in case of failure
- * o zero if no partitions were found
- * o a positive number of found partitions, in which case on exit @pparts will
- *   point to an array containing this number of &struct mtd_info objects.
+ * o zero otherwise, and @pparts will describe the partitions, number of
+ *   partitions, and the parser which parsed them
  */
 int parse_mtd_partitions(struct mtd_info *master, const char *const *types,
-			 const struct mtd_partition **pparts,
+			 struct mtd_partitions *pparts,
 			 struct mtd_part_parser_data *data)
 {
 	struct mtd_part_parser *parser;
@@ -778,14 +777,16 @@ int parse_mtd_partitions(struct mtd_info *master, const char *const *types,
 			 parser ? parser->name : NULL);
 		if (!parser)
 			continue;
-		ret = (*parser->parse_fn)(master, pparts, data);
+		ret = (*parser->parse_fn)(master, &pparts->parts, data);
 		pr_debug("%s: parser %s: %i\n",
 			 master->name, parser->name, ret);
 		mtd_part_parser_put(parser);
 		if (ret > 0) {
 			printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n",
 			       ret, parser->name, master->name);
-			return ret;
+			pparts->nr_parts = ret;
+			pparts->parser = parser;
+			return 0;
 		}
 		/*
 		 * Stash the first error we see; only report it if no parser