linux-kernel - [PATCH v2] mtd: set master partition panic write flag

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Date:   Mon, 15 Jun 2020 11:51:34 -0400
From:   Kamal Dasu <kdasu.kdev@...il.com>
To:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Kamal Dasu <kdasu.kdev@...il.com>
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] mtd: set master partition panic write flag

Check and set master panic write flag so that low level drivers
can use it to take required action to ensure oops data gets written
to assigned mtdoops device partition.

Fixes: 9f897bfdd89f ("mtd: Add flag to indicate panic_write")
Signed-off-by: Kamal Dasu <kdasu.kdev@...il.com>
---
 drivers/mtd/mtdcore.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index b47691e1b81c..6efca96dc110 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -1235,8 +1235,8 @@ int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
 		return -EROFS;
 	if (!len)
 		return 0;
-	if (!mtd->oops_panic_write)
-		mtd->oops_panic_write = true;
+	if (!master->oops_panic_write)
+		master->oops_panic_write = true;
 
 	return master->_panic_write(master, mtd_get_master_ofs(mtd, to), len,
 				    retlen, buf);
-- 
2.17.1