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Subject[PATCH 5.4 287/348] mtd: partitions: redboot: seek fis-index-block in the right node
Date
From: Corentin Labbe <clabbe@baylibre.com>

[ Upstream commit 237960880960863fb41888763d635b384cffb104 ]

fis-index-block is seeked in the master node and not in the partitions node.
For following binding and current usage, the driver need to check the
partitions subnode.

Fixes: c0e118c8a1a3 ("mtd: partitions: Add OF support to RedBoot partitions")
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210520114851.1274609-1-clabbe@baylibre.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mtd/parsers/redboot.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/parsers/redboot.c b/drivers/mtd/parsers/redboot.c
index 91146bdc4713..3ccd6363ee8c 100644
--- a/drivers/mtd/parsers/redboot.c
+++ b/drivers/mtd/parsers/redboot.c
@@ -45,6 +45,7 @@ static inline int redboot_checksum(struct fis_image_desc *img)
static void parse_redboot_of(struct mtd_info *master)
{
struct device_node *np;
+ struct device_node *npart;
u32 dirblock;
int ret;

@@ -52,7 +53,11 @@ static void parse_redboot_of(struct mtd_info *master)
if (!np)
return;

- ret = of_property_read_u32(np, "fis-index-block", &dirblock);
+ npart = of_get_child_by_name(np, "partitions");
+ if (!npart)
+ return;
+
+ ret = of_property_read_u32(npart, "fis-index-block", &dirblock);
if (ret)
return;

--
2.30.2


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