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hid-sony: fix divide by 0 exception.

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Sorgelig
2019-03-20 06:25:27 +08:00
parent 8713e14922
commit 80f8a293cc
1 changed files with 2 additions and 2 deletions
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4
drivers/hid/hid-sony.c
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@@ -1121,9 +1121,9 @@ static void dualshock4_parse_report(struct sony_sc *sc, u8 *rd, int size)
* Note: we swap numerator 'x' and 'numer' in mult_frac for
* precision reasons so we don't need 64-bit.
*/
int calib_data = mult_frac(calib->sens_numer,
int calib_data = calib->sens_denom ? mult_frac(calib->sens_numer,
raw_data - calib->bias,
calib->sens_denom);
calib->sens_denom) : 0;
input_report_abs(sc->sensor_dev, calib->abs_code, calib_data);
offset += 2;