Commit 00426e99 authored Nov 17, 2018 by Shreeya Patel Committed by Jonathan Cameron Nov 17, 2018

Staging: iio: adt7316: Add an extra check for 'ret' equals to 0

ret = 0 indicates a case of no error but no data read from
the bus which is an invalid case. This case doesn't ever happen
in reality. It should perhaps be handled for correctness though.

Signed-off-by: Shreeya Patel <shreeya.patel23498@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

parent 688cd642

drivers/staging/iio/addac/adt7316-i2c.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -30,6 +30,10 @@ static int adt7316_i2c_read(void client, u8 reg, u8 data)
		}

		ret = i2c_smbus_read_byte(client);

		if (!ret)
		return -EIO;

		if (ret < 0) {
		dev_err(&cl->dev, "I2C read error\n");
		return ret;