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[PATCH] rtc subsystem: use ENOIOCTLCMD and ENOTTY where appropriate

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Appropriately use -ENOIOCTLCMD and -ENOTTY when the ioctl is not
implemented by a driver.

(akpm: we're not allowed to return -ENOIOCTLCMD to userspace.  This patch does
the right thing).

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Alessandro Zummo 2006-05-20 15:00:29 -07:00 committed by Linus Torvalds
parent eae07ac607
commit b3969e5831
4 changed files with 6 additions and 6 deletions
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6
drivers/rtc/rtc-dev.c
View file

@ -141,13 +141,13 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file,
/* try the driver's ioctl interface */
if (ops->ioctl) {
err = ops->ioctl(class_dev->dev, cmd, arg);
if (err != -EINVAL)
if (err != -ENOIOCTLCMD)
return err;
}
/* if the driver does not provide the ioctl interface
* or if that particular ioctl was not implemented
* (-EINVAL), we will try to emulate here.
* (-ENOIOCTLCMD), we will try to emulate here.
*/
switch (cmd) {
@ -233,7 +233,7 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file,
break;
default:
err = -EINVAL;
err = -ENOTTY;
break;
}

2
drivers/rtc/rtc-sa1100.c
View file

@ -247,7 +247,7 @@ static int sa1100_rtc_ioctl(struct device *dev, unsigned int cmd,
rtc_freq = arg;
return 0;
}
return -EINVAL;
return -ENOIOCTLCMD;
}
static int sa1100_rtc_read_time(struct device *dev, struct rtc_time *tm)

2
drivers/rtc/rtc-test.c
View file

@ -71,7 +71,7 @@ static int test_rtc_ioctl(struct device *dev, unsigned int cmd,
return 0;
default:
return -EINVAL;
return -ENOIOCTLCMD;
}
}

2
drivers/rtc/rtc-vr41xx.c
View file

@ -270,7 +270,7 @@ static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long
epoch = arg;
break;
default:
return -EINVAL;
return -ENOIOCTLCMD;
}
return 0;