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rtc-dev: return -ENOTTY in ioctl if irq_set_freq is not implemented by driver

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Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Hans-Christian Egtvedt 2007-07-17 04:05:00 -07:00 committed by Linus Torvalds
parent 7a39a49c74
commit ac495bf897
1 changed files with 2 additions and 0 deletions
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2
drivers/rtc/rtc-dev.c
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@ -341,6 +341,8 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file,
case RTC_IRQP_READ:
if (ops->irq_set_freq)
err = put_user(rtc->irq_freq, (unsigned long __user *)uarg);
else
err = -ENOTTY;
break;
case RTC_IRQP_SET: