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| author | Doug Anderson <dianders@chromium.org> | 2014-02-13 14:39:34 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-22 12:41:27 -0800 |
| commit | 600b64afd789d3d0deaf467b5fd88bca8d459768 (patch) | |
| tree | bf85aa357aee31b0626877f277c203d75f70f1d0 /fs | |
| parent | 5f32e4632c22a12b8ddc2e16c2be6b2988baf57a (diff) | |
hwmon: (ntc_thermistor) Avoid math overflow
commit d3d89c468ceebbcf9423d1a3d66c5bf91f569570 upstream.
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@chromium.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions