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mtd: don't lock when recursively deleting partitions
author
David Bauer
<mail@david-bauer.net>
Wed, 17 Feb 2021 19:53:20 +0000
(20:53 +0100)
committer
Miquel Raynal
<miquel.raynal@bootlin.com>
Thu, 11 Mar 2021 08:37:49 +0000
(09:37 +0100)
When recursively deleting partitions, don't acquire the masters
partition lock twice. Otherwise the process ends up in a deadlocked
state.
Fixes:
46b5889cc2c5
("mtd: implement proper partition handling")
Signed-off-by: David Bauer <mail@david-bauer.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link:
https://lore.kernel.org/linux-mtd/20210217195320.893253-1-mail@david-bauer.net
drivers/mtd/mtdpart.c
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diff --git
a/drivers/mtd/mtdpart.c
b/drivers/mtd/mtdpart.c
index
12ca4f1
..
665fd90
100644
(file)
--- a/
drivers/mtd/mtdpart.c
+++ b/
drivers/mtd/mtdpart.c
@@
-331,7
+331,7
@@
static int __del_mtd_partitions(struct mtd_info *mtd)
list_for_each_entry_safe(child, next, &mtd->partitions, part.node) {
if (mtd_has_partitions(child))
- del_mtd_partitions(child);
+
__
del_mtd_partitions(child);
pr_info("Deleting %s MTD partition\n", child->name);
ret = del_mtd_device(child);