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-rw-r--r--drivers/mtd/nand/raw/internals.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/internals.h b/drivers/mtd/nand/raw/internals.h
index 6e2f61fbc5f0..b62728d5884b 100644
--- a/drivers/mtd/nand/raw/internals.h
+++ b/drivers/mtd/nand/raw/internals.h
@@ -101,6 +101,9 @@ static inline int nand_exec_op(struct nand_chip *chip,
if (!chip->exec_op)
return -ENOTSUPP;
+ if (WARN_ON(op->cs >= chip->numchips))
+ return -EINVAL;
+
return chip->exec_op(chip, op, false);
}