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rtc: Fix ioctl error path return

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Bryan Henderson noticed that the  "RTC: Fix rtc driver ioctl specific
shortcutting" commit has a small bug: When an ioctl is called with an
invalid command code and the clock driver does not have an "ioctl"
method, the ioctl returns rc 0 instead of -ENOTTY.

This patch fixes the issue.

CC: Bryan Henderson <bryanh@giraffe-data.com>
CC: Gabor Z. Papp <gzp@papp.hu>
Reported-by: Bryan Henderson <bryanh@giraffe-data.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
John Stultz 2011-05-31 23:26:11 -07:00
parent 1fa7b6a29c
commit e17fd4ba2a
1 changed files with 2 additions and 1 deletions
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3
drivers/rtc/rtc-dev.c
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@ -421,7 +421,8 @@ static long rtc_dev_ioctl(struct file *file,
err = ops->ioctl(rtc->dev.parent, cmd, arg);
if (err == -ENOIOCTLCMD)
err = -ENOTTY;
}
} else
err = -ENOTTY;
break;
}