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pwm.c: remove possibility of division by 0

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Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
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Brendan Le Foll
2014-11-26 14:00:17 +00:00
parent 9f3cc6e890
commit 0289c63c4c
1 changed files with 5 additions and 2 deletions
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7
src/pwm/pwm.c
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@@ -268,8 +268,11 @@ mraa_pwm_write(mraa_pwm_context dev, float percentage)
float float
mraa_pwm_read(mraa_pwm_context dev) mraa_pwm_read(mraa_pwm_context dev)
{ {
float output = mraa_pwm_read_duty(dev) / (float) mraa_pwm_read_period(dev); int period = mraa_pwm_read_period(dev);
return output; if (period > 0) {
return (mraa_pwm_read_duty(dev) / (float) period);
}
return 0.0f;
} }
mraa_result_t mraa_result_t