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Commit ab772027 authored by Stoyan Gaydarov's avatar Stoyan Gaydarov Committed by David S. Miller
Browse files

sparc: arch/sparc/kernel/apc.c to unlocked_ioctl



This changes arch/sparc/kernel/apc.c to use unlocked_ioctl

Signed-off-by: default avatarStoyan Gaydarov <stoyboyker@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f5e706ad
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+28 −12
Original line number Diff line number Diff line
@@ -85,52 +85,68 @@ static int apc_release(struct inode *inode, struct file *f)
	return 0;
}

static int apc_ioctl(struct inode *inode, struct file *f, 
		     unsigned int cmd, unsigned long __arg)
static long apc_ioctl(struct file *f, unsigned int cmd, unsigned long __arg)
{
	__u8 inarg, __user *arg;

	arg = (__u8 __user *) __arg;

	lock_kernel();

	switch (cmd) {
	case APCIOCGFANCTL:
		if (put_user(apc_readb(APC_FANCTL_REG) & APC_REGMASK, arg))
		if (put_user(apc_readb(APC_FANCTL_REG) & APC_REGMASK, arg)) {
			unlock_kernel();
			return -EFAULT;
		}
		break;

	case APCIOCGCPWR:
		if (put_user(apc_readb(APC_CPOWER_REG) & APC_REGMASK, arg))
		if (put_user(apc_readb(APC_CPOWER_REG) & APC_REGMASK, arg)) {
			unlock_kernel();
			return -EFAULT;
		}
		break;

	case APCIOCGBPORT:
		if (put_user(apc_readb(APC_BPORT_REG) & APC_BPMASK, arg))
		if (put_user(apc_readb(APC_BPORT_REG) & APC_BPMASK, arg)) {
			unlock_kernel();
			return -EFAULT;
		}
		break;

	case APCIOCSFANCTL:
		if (get_user(inarg, arg))
		if (get_user(inarg, arg)) {
			unlock_kernel();
			return -EFAULT;
		}
		apc_writeb(inarg & APC_REGMASK, APC_FANCTL_REG);
		break;
	case APCIOCSCPWR:
		if (get_user(inarg, arg))
		if (get_user(inarg, arg)) {
			unlock_kernel();
			return -EFAULT;
		}
		apc_writeb(inarg & APC_REGMASK, APC_CPOWER_REG);
		break;
	case APCIOCSBPORT:
		if (get_user(inarg, arg))
		if (get_user(inarg, arg)) {
			unlock_kernel();
			return -EFAULT;
		}
		apc_writeb(inarg & APC_BPMASK, APC_BPORT_REG);
		break;
	default:
		unlock_kernel();
		return -EINVAL;
	};

	unlock_kernel();
	return 0;
}

static const struct file_operations apc_fops = {
	.ioctl =	apc_ioctl,
	.unlocked_ioctl =	apc_ioctl,
	.open =			apc_open,
	.release =		apc_release,
};