From: Andreas Oetken <ennoerlangen@gmail.com>
Date: Tue, 2 Nov 2021 17:26:04 +0000 (+0100)
Subject: mtd: Fixed breaking list in __mtd_del_partition.
X-Git-Tag: v5.17-rc1~149^2~13
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2966daf7d253d9904b337b040dd7a43472858b8a;p=thirdparty%2Fkernel%2Fstable.git

mtd: Fixed breaking list in __mtd_del_partition.

Not the child partition should be removed from the partition list
but the partition itself. Otherwise the partition list gets broken
and any subsequent remove operations leads to a kernel panic.

Fixes: 46b5889cc2c5 ("mtd: implement proper partition handling")
Signed-off-by: Andreas Oetken <andreas.oetken@siemens-energy.com>
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211102172604.2921065-1-andreas.oetken@siemens-energy.com
---

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 04af12b66110c..357661b62c94d 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -312,7 +312,7 @@ static int __mtd_del_partition(struct mtd_info *mtd)
 	if (err)
 		return err;
 
-	list_del(&child->part.node);
+	list_del(&mtd->part.node);
 	free_partition(mtd);
 
 	return 0;