From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Fri, 9 Jan 2026 17:18:03 +0000 (+0100)
Subject: mtd: spinand: Add missing check
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aab8a4c656379a6a1a4ca716f48118680560eaab;p=thirdparty%2Fkernel%2Flinux.git

mtd: spinand: Add missing check

The update cache variant is mandatory, both read and write versions are
being checked, but not this one. All chip drivers seem to implement this
variant, so there should be no breakage.

Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---

diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c
index 0346916b032bd..19100ea77e333 100644
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -1430,6 +1430,9 @@ int spinand_match_and_init(struct spinand_device *spinand,
 
 		op = spinand_select_op_variant(spinand,
 					       info->op_variants.update_cache);
+		if (!op)
+			return -ENOTSUPP;
+
 		spinand->op_templates.update_cache = op;
 
 		return 0;