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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-06-17 05:33:51 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-06-17 05:33:51 +0200 |
| commit | bb967271c0317de8eed56b20aae978d31507b033 (patch) | |
| tree | b120e82a88dcf00069d3836eafa07502da2794a4 /include | |
| parent | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm (diff) | |
| parent | pwm: atmel-hlcdc: Fix default PWM polarity (diff) | |
| download | linux-bb967271c0317de8eed56b20aae978d31507b033.tar.xz linux-bb967271c0317de8eed56b20aae978d31507b033.zip | |
Merge tag 'pwm/for-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm fixes from Thierry Reding:
"These changes fix a bit of fallout from the introduction of the atomic
API"
* tag 'pwm/for-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: atmel-hlcdc: Fix default PWM polarity
pwm: sysfs: Get return value from pwm_apply_state()
pwm: Improve args checking in pwm_apply_state()
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pwm.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/pwm.h b/include/linux/pwm.h index 17018f3c066e..908b67c847cd 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -235,6 +235,9 @@ static inline int pwm_config(struct pwm_device *pwm, int duty_ns, if (!pwm) return -EINVAL; + if (duty_ns < 0 || period_ns < 0) + return -EINVAL; + pwm_get_state(pwm, &state); if (state.duty_cycle == duty_ns && state.period == period_ns) return 0; |