luck/tmp_suning_uos_patched
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ip2: push BKL down for the firmware interface

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(The tty side is already done)

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox 2008-07-25 01:48:13 -07:00 committed by Linus Torvalds
parent 76528a42e2
commit 47be36a24d
1 changed files with 8 additions and 5 deletions
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13
drivers/char/ip2/ip2main.c
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@ -203,7 +203,7 @@ static int set_serial_info(i2ChanStrPtr, struct serial_struct __user *);
static ssize_t ip2_ipl_read(struct file *, char __user *, size_t, loff_t *);
static ssize_t ip2_ipl_write(struct file *, const char __user *, size_t, loff_t *);
static int ip2_ipl_ioctl(struct inode *, struct file *, UINT, ULONG);
static long ip2_ipl_ioctl(struct file *, UINT, ULONG);
static int ip2_ipl_open(struct inode *, struct file *);
static int DumpTraceBuffer(char __user *, int);
@ -236,7 +236,7 @@ static const struct file_operations ip2_ipl = {
.owner = THIS_MODULE,
.read = ip2_ipl_read,
.write = ip2_ipl_write,
.ioctl = ip2_ipl_ioctl,
.unlocked_ioctl = ip2_ipl_ioctl,
.open = ip2_ipl_open,
};
@ -2845,10 +2845,10 @@ ip2_ipl_write(struct file *pFile, const char __user *pData, size_t count, loff_t
/* */
/* */
/******************************************************************************/
static int
ip2_ipl_ioctl ( struct inode *pInode, struct file *pFile, UINT cmd, ULONG arg )
static long
ip2_ipl_ioctl (struct file *pFile, UINT cmd, ULONG arg )
{
unsigned int iplminor = iminor(pInode);
unsigned int iplminor = iminor(pFile->f_path.dentry->d_inode);
int rc = 0;
void __user *argp = (void __user *)arg;
ULONG __user *pIndex = argp;
@ -2859,6 +2859,8 @@ ip2_ipl_ioctl ( struct inode *pInode, struct file *pFile, UINT cmd, ULONG arg )
printk (KERN_DEBUG "IP2IPL: ioctl cmd %d, arg %ld\n", cmd, arg );
#endif
lock_kernel();
switch ( iplminor ) {
case 0: // IPL device
rc = -EINVAL;
@ -2919,6 +2921,7 @@ ip2_ipl_ioctl ( struct inode *pInode, struct file *pFile, UINT cmd, ULONG arg )
rc = -ENODEV;
break;
}
unlock_kernel();
return rc;
}