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 0346916..19100ea 100644 (file)
--- 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;