s390/vmcp: return -ENOTTY for unknown ioctl commands
Return -ENOTTY for unknown ioctl commands instead of -ENOIOCTLCMD. This isn't that much of difference, since common code will translate -ENOIOCTLCMD to -ENOTTY anyway, but this way it seems to be more obvious what is happening (at least to me). Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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@ -231,7 +231,7 @@ static long vmcp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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return put_user(temp, argp);
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default:
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mutex_unlock(&session->mutex);
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return -ENOIOCTLCMD;
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return -ENOTTY;
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}
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}
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