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@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200615155134.32007-1-kdasu.kdev@gmail.com

diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 76d832a88e0c4fdd3d90337dc5f90038eed1c15f..7d930569a7dfb740522316297ae8c90c86316d3a 100644 (file)
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -1273,8 +1273,8 @@ 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);