[openwrt/openwrt] generic: don't lock when recursively deleting partitions

[LEDE Commits]

blocktrron pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/5408399fcb468164a76df8cea9505203c21f4158

commit 5408399fcb468164a76df8cea9505203c21f4158
Author: David Bauer <mail at david-bauer.net>
AuthorDate: Wed Feb 17 03:24:07 2021 +0100

    generic: don't lock when recursively deleting partitions
    
    When recursively deleting partitions, don't acquire the masters
    partition lock twice. Otherwise the process endy up in a deadlocked
    state.
    
    Signed-off-by: David Bauer <mail at david-bauer.net>
---
 ...lock-when-recursively-deleting-partitions.patch | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/target/linux/generic/pending-5.10/499-mtd-don-t-lock-when-recursively-deleting-partitions.patch b/target/linux/generic/pending-5.10/499-mtd-don-t-lock-when-recursively-deleting-partitions.patch
new file mode 100644
index 0000000000..505131b684
--- /dev/null
+++ b/target/linux/generic/pending-5.10/499-mtd-don-t-lock-when-recursively-deleting-partitions.patch
@@ -0,0 +1,24 @@
+From: David Bauer <mail at david-bauer.net>
+Date: Wed, 17 Feb 2021 03:21:39 +0100
+Subject: [PATCH] mtd: don't lock when recursively deleting partitions
+
+When recursively deleting partitions, don't acquire the masters
+partition lock twice. Otherwise the process endy up in a deadlocked
+state.
+
+Signed-off-by: David Bauer <mail at david-bauer.net>
+---
+ drivers/mtd/mtdpart.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/mtd/mtdpart.c
++++ b/drivers/mtd/mtdpart.c
+@@ -474,7 +474,7 @@ static int __del_mtd_partitions(struct m
+ 
+ 	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);