mtd: mtdpart: add debug prints to partition parser. (8e2c992b) · Commits · 戴 / test

The probe of a mtd device can fail when a partition parser returns error. The failure due to partition parsing can be quite mysterious when multiple partitioning schemes are compiled in and any of them can fail the probe. Add debug prints which show what parsers were tried and what they returned. Signed-off-by:

Michal Suchanek <hramrach@gmail.com> Signed-off-by:

Brian Norris <computersforpeace@gmail.com>

drivers/mtd/mtdpart.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -761,12 +761,17 @@ int parse_mtd_partitions(struct mtd_info master, const char const *types,
		types = default_mtd_part_types;

		for ( ; ret <= 0 && *types; types++) {
		pr_debug("%s: parsing partitions %s\n", master->name, *types);
		parser = get_partition_parser(*types);
		if (!parser && !request_module("%s", *types))
		parser = get_partition_parser(*types);
		pr_debug("%s: got parser %s\n", master->name,
		parser ? parser->name : NULL);
		if (!parser)
		continue;
		ret = (*parser->parse_fn)(master, pparts, data);
		pr_debug("%s: parser %s: %i\n",
		master->name, parser->name, ret);
		put_partition_parser(parser);
		if (ret > 0) {
		printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n",

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