This comparison should be >= ARRAY_SIZE() instead of >. The "mspan"
variable is later used as an array index into ltc2664_mspan_lut[] so
this is an off by one bug.
Fixes: 4cc2fc445d2e ("iio: dac: ltc2664: Add driver for LTC2664 and LTC2672")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/iio/dac/ltc2664.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/dac/ltc2664.c b/drivers/iio/dac/ltc2664.c
index 666ecdeb5f96..5be5345ac5c8 100644
--- a/drivers/iio/dac/ltc2664.c
+++ b/drivers/iio/dac/ltc2664.c
@@ -526,7 +526,7 @@ static int ltc2664_channel_config(struct ltc2664_state *st)
return dev_err_probe(dev, -EINVAL,
"adi,manual-span-operation-config not supported\n");
- if (mspan > ARRAY_SIZE(ltc2664_mspan_lut))
+ if (mspan >= ARRAY_SIZE(ltc2664_mspan_lut))
return dev_err_probe(dev, -EINVAL,
"adi,manual-span-operation-config not in range\n");
}
--
2.43.0
