On Wed, 2012-02-22 at 02:55 -0500, Xie Xiaobo wrote:
> Add I2C driver for MCP3021 that is an ADC chip from Microchip.
> The MCP3021 is a successive approximation A/D converter (ADC)
> with 10-bit resolution.
> The driver export the value of Vin to sysfs, the voltage unit is
> mV. Through the sysfs interface, lm-sensors tool can also display
> Vin voltage.
>
> Signed-off-by: Mingkai Hu <Mingkai.hu@xxxxxxxxxxxxx>
> Signed-off-by: Xie Xiaobo <X.Xie@xxxxxxxxxxxxx>
[ ... ]
> +
> + if (reg < 0) {
> + printk(KERN_ERR "%s encountered error %d\n", __func__, reg);
You should use dev_err() here.
Guenter
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