Re: [PATCH] hwmon: (ntc_thermistor): Avoid overflow

From: Guenter Roeck
Date: Thu Feb 13 2014 - 21:51:36 EST


On 02/13/2014 02:39 PM, Doug Anderson wrote:
The ntc thermistor code was doing math whose temporary result might
have overflowed 32-bits. We need some casts in there to make it safe.

In one example I found:
- pullup_uV: 1800000
- result of iio_read_channel_raw: 3226
- 1800000 * 3226 => 0x15a1cbc80

Signed-off-by: Doug Anderson <dianders@xxxxxxxxxxxx>

Nice catch. Applied.

Thanks,
Guenter


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