| Message ID | 1341767544-17447-3-git-send-email-jbe@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/plat-samsung/pwm.c b/arch/arm/plat-samsung/pwm.c index c559d84..751a0bf 100644 --- a/arch/arm/plat-samsung/pwm.c +++ b/arch/arm/plat-samsung/pwm.c @@ -188,7 +188,10 @@ int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns) tcmp = __raw_readl(S3C2410_TCMPB(pwm->pwm_id)); tcnt = __raw_readl(S3C2410_TCNTB(pwm->pwm_id)); - period = NS_IN_HZ / period_ns; + if (period_ns) + period = NS_IN_HZ / period_ns; + else + period = 0; pwm_dbg(pwm, "duty_ns=%d, period_ns=%d (%lu)\n", duty_ns, period_ns, period);
The pwm-beeper driver crashes the PWM driver by calling with a period time of zero nanoseconds. Signed-off-by: Juergen Beisert <jbe@pengutronix.de> --- arch/arm/plat-samsung/pwm.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)