[MIPS] Cleanup inode->r_dev usage.

    
imajor()/iminor() should be used instead of accessing r_dev directly.

Based on patch from Eric Sesterhenn (snakebyte@gmx.de).
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/rtlx.c

@@ -398,15 +398,14 @@ ssize_t rtlx_write(int index, void *buffer, size_t count, int user)
 
 static int file_open(struct inode *inode, struct file *filp)
 {
-	int minor = MINOR(inode->i_rdev);
+	int minor = iminor(inode);
 
 	return rtlx_open(minor, (filp->f_flags & O_NONBLOCK) ? 0 : 1);
 }
 
 static int file_release(struct inode *inode, struct file *filp)
 {
-	int minor;
-	minor = MINOR(inode->i_rdev);
+	int minor = iminor(inode);
 
 	return rtlx_release(minor);
 }
@@ -416,7 +415,7 @@ static unsigned int file_poll(struct file *file, poll_table * wait)
 	int minor;
 	unsigned int mask = 0;
 
-	minor = MINOR(file->f_dentry->d_inode->i_rdev);
+	minor = iminor(file->f_dentry->d_inode);
 
 	poll_wait(file, &channel_wqs[minor].rt_queue, wait);
 	poll_wait(file, &channel_wqs[minor].lx_queue, wait);
@@ -438,7 +437,7 @@ static unsigned int file_poll(struct file *file, poll_table * wait)
 static ssize_t file_read(struct file *file, char __user * buffer, size_t count,
 			 loff_t * ppos)
 {
-	int minor = MINOR(file->f_dentry->d_inode->i_rdev);
+	int minor = iminor(file->f_dentry->d_inode);
 
 	/* data available? */
 	if (!rtlx_read_poll(minor, (file->f_flags & O_NONBLOCK) ? 0 : 1)) {
@@ -455,7 +454,7 @@ static ssize_t file_write(struct file *file, const char __user * buffer,
 	struct rtlx_channel *rt;
 	DECLARE_WAITQUEUE(wait, current);
 
-	minor = MINOR(file->f_dentry->d_inode->i_rdev);
+	minor = iminor(file->f_dentry->d_inode);
 	rt = &rtlx->channel[minor];
 
 	/* any space left... */

arch/mips/kernel/vpe.c

@@ -1072,7 +1072,7 @@ static int vpe_open(struct inode *inode, struct file *filp)
 	struct vpe_notifications *not;
 
 	/* assume only 1 device at the mo. */
-	if ((minor = MINOR(inode->i_rdev)) != 1) {
+	if ((minor = iminor(inode)) != 1) {
 		printk(KERN_WARNING "VPE loader: only vpe1 is supported\n");
 		return -ENODEV;
 	}
@@ -1133,7 +1133,7 @@ static int vpe_release(struct inode *inode, struct file *filp)
 	struct vpe *v;
 	Elf_Ehdr *hdr;
 
-	minor = MINOR(inode->i_rdev);
+	minor = iminor(inode);
 	if ((v = get_vpe(minor)) == NULL)
 		return -ENODEV;
 
@@ -1174,7 +1174,7 @@ static ssize_t vpe_write(struct file *file, const char __user * buffer,
 	size_t ret = count;
 	struct vpe *v;
 
-	minor = MINOR(file->f_dentry->d_inode->i_rdev);
+	minor = iminor(file->f_dentry->d_inode);
 	if ((v = get_vpe(minor)) == NULL)
 		return -ENODEV;