This is a note to let you know that I've just added the patch titled
mtd: rawnand: arasan: Check the proposed data interface is supported
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mtd-rawnand-arasan-check-the-proposed-data-interface.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 18d1d99d0c89cda1fc0b008ad27cda52a96cf609
Author: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Date: Wed May 5 23:37:30 2021 +0200
mtd: rawnand: arasan: Check the proposed data interface is supported
[ Upstream commit 4dd7ef970bee8a93e1817ec028a7e26aef046d0d ]
Check the data interface is supported in ->setup_interface() before
acknowledging the timings.
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Link: https://lore.kernel.org/linux-mtd/20210505213750.257417-3-miquel.raynal@xxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mtd/nand/raw/arasan-nand-controller.c b/drivers/mtd/nand/raw/arasan-nand-controller.c
index cea57de5e6cd..f9fb3b7a3ec3 100644
--- a/drivers/mtd/nand/raw/arasan-nand-controller.c
+++ b/drivers/mtd/nand/raw/arasan-nand-controller.c
@@ -884,6 +884,11 @@ static int anfc_setup_interface(struct nand_chip *chip, int target,
struct anand *anand = to_anand(chip);
struct arasan_nfc *nfc = to_anfc(chip->controller);
struct device_node *np = nfc->dev->of_node;
+ const struct nand_sdr_timings *sdr;
+
+ sdr = nand_get_sdr_timings(conf);
+ if (IS_ERR(sdr))
+ return PTR_ERR(sdr);
if (target < 0)
return 0;
