[PATCH 1/3] iio: mxs-lradc: fix buffer overflow (no replies)

Fixes:
drivers/staging/iio/adc/mxs-lradc.c:1556 mxs_lradc_probe() error: buffer
overflow 'iio->channels' 15 <= 15

The reported available scales for in_voltage15 were also wrong.

The realbits lookup is not necessary as all the channels of the LRADC have the
same resolution, use LRADC_RESOLUTION instead.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
drivers/staging/iio/adc/mxs-lradc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index df71669bb60e..aa86849daeba 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -1613,7 +1613,7 @@ static int mxs_lradc_probe(struct platform_device *pdev)
* of the array.
*/
scale_uv = ((u64)lradc->vref_mv * 100000000) >>
- (iio->channels.scan_type.realbits - s);
+ (LRADC_RESOLUTION - s);
lradc->scale_avail.nano =
do_div(scale_uv, 100000000) * 10;
lradc->scale_avail.integer = scale_uv;
--
1.8.3.2

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