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path: root/drivers/mtd/nand/raw/intel-nand-controller.c
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Diffstat (limited to 'drivers/mtd/nand/raw/intel-nand-controller.c')
-rw-r--r--drivers/mtd/nand/raw/intel-nand-controller.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/intel-nand-controller.c b/drivers/mtd/nand/raw/intel-nand-controller.c
index b9784f3da7a1..7c1c80dae826 100644
--- a/drivers/mtd/nand/raw/intel-nand-controller.c
+++ b/drivers/mtd/nand/raw/intel-nand-controller.c
@@ -609,6 +609,11 @@ static int ebu_nand_probe(struct platform_device *pdev)
dev_err(dev, "failed to get chip select: %d\n", ret);
return ret;
}
+ if (cs >= MAX_CS) {
+ dev_err(dev, "got invalid chip select: %d\n", cs);
+ return -EINVAL;
+ }
+
ebu_host->cs_num = cs;
resname = devm_kasprintf(dev, GFP_KERNEL, "nand_cs%d", cs);