ip2: push BKL down for the firmware interface

(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>

1 files changed, 8 insertions, 5 deletions

diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index 9cb48fcd316c..689f9dcd3b86 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -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;
 }