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Fix integer overflow in deadzone calculation

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Cameron Gutman
2016-04-03 02:14:53 -04:00
parent f2ada1fa20
commit 0f5b50dfa7
1 changed files with 2 additions and 2 deletions
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4
src/input/evdev.c
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@@ -106,9 +106,9 @@ static short evdev_convert_value(struct input_event *ev, struct input_device *de
else if (ev->value < parms->min)
return reverse?SHRT_MAX:SHRT_MIN;
else if (reverse)
return (parms->max - (ev->value<parms->avg?parms->flat*2:0) - ev->value) * (SHRT_MAX-SHRT_MIN) / (parms->max-parms->min-parms->flat*2) + SHRT_MIN;
return (long long)(parms->max - (ev->value<parms->avg?parms->flat*2:0) - ev->value) * (SHRT_MAX-SHRT_MIN) / (parms->max-parms->min-parms->flat*2) + SHRT_MIN;
else
return (ev->value - (ev->value>parms->avg?parms->flat*2:0) - parms->min) * (SHRT_MAX-SHRT_MIN) / (parms->max-parms->min-parms->flat*2) + SHRT_MIN;
return (long long)(ev->value - (ev->value>parms->avg?parms->flat*2:0) - parms->min) * (SHRT_MAX-SHRT_MIN) / (parms->max-parms->min-parms->flat*2) + SHRT_MIN;
}
static char evdev_convert_value_byte(struct input_event *ev, struct input_device *dev, struct input_abs_parms *parms) {