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authorHans-Christian Egtvedt <hcegtvedt@atmel.com>2007-07-17 04:05:00 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 10:23:09 -0700
commitac495bf8971f2dc9d401d892849977e86633ced6 (patch)
treee9ff9866c01cba3d52a33fe3705167eda6c84a2d /drivers/rtc
parent7a39a49c746adc08488b1403b5aeca1dbd4ce0e2 (diff)
rtc-dev: return -ENOTTY in ioctl if irq_set_freq is not implemented by driver
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>
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-dev.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
index f4e5f0040ff..304535942de 100644
--- a/drivers/rtc/rtc-dev.c
+++ b/drivers/rtc/rtc-dev.c
@@ -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: