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authorStoyan Gaydarov <stoyboyker@gmail.com>2008-07-14 22:12:29 -0700
committerDavid S. Miller <davem@davemloft.net>2008-07-17 21:56:16 -0700
commitab772027ca42a06f7e480077182434a2a30a8037 (patch)
treeb0ebe6c76f552aeffd2c46a25b0d8a6f6abff891 /arch/sparc
parentf5e706ad886b6a5eb59637830110b09ccebf01c5 (diff)
downloadlinux-ab772027ca42a06f7e480077182434a2a30a8037.tar.bz2
sparc: arch/sparc/kernel/apc.c to unlocked_ioctl
This changes arch/sparc/kernel/apc.c to use unlocked_ioctl Signed-off-by: Stoyan Gaydarov <stoyboyker@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/kernel/apc.c40
1 files changed, 28 insertions, 12 deletions
diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c
index 54f7ccd7455f..5267d48fb2c6 100644
--- a/arch/sparc/kernel/apc.c
+++ b/arch/sparc/kernel/apc.c
@@ -85,54 +85,70 @@ 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))
- return -EFAULT;
+ 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,
- .open = apc_open,
- .release = apc_release,
+ .unlocked_ioctl = apc_ioctl,
+ .open = apc_open,
+ .release = apc_release,
};
static struct miscdevice apc_miscdev = { APC_MINOR, APC_DEVNAME, &apc_fops };