1 files changed, 3 insertions, 25 deletions

diff --git a/drivers/pnp/isapnp/proc.c b/drivers/pnp/isapnp/proc.c
index 315b3112aca..5edee645d89 100644
--- a/drivers/pnp/isapnp/proc.c
+++ b/drivers/pnp/isapnp/proc.c
@@ -29,35 +29,13 @@ static struct proc_dir_entry *isapnp_proc_bus_dir = NULL;
 
 static loff_t isapnp_proc_bus_lseek(struct file *file, loff_t off, int whence)
 {
-	loff_t new = -1;
-	struct inode *inode = file->f_path.dentry->d_inode;
-
-	mutex_lock(&inode->i_mutex);
-	switch (whence) {
-	case 0:
-		new = off;
-		break;
-	case 1:
-		new = file->f_pos + off;
-		break;
-	case 2:
-		new = 256 + off;
-		break;
-	}
-	if (new < 0 || new > 256)
-		new = -EINVAL;
-	else
-		file->f_pos = new;
-	mutex_unlock(&inode->i_mutex);
-	return new;
+	return fixed_size_llseek(file, off, whence, 256);
 }
 
 static ssize_t isapnp_proc_bus_read(struct file *file, char __user * buf,
 				    size_t nbytes, loff_t * ppos)
 {
-	struct inode *ino = file->f_path.dentry->d_inode;
-	struct proc_dir_entry *dp = PDE(ino);
-	struct pnp_dev *dev = dp->data;
+	struct pnp_dev *dev = PDE_DATA(file_inode(file));
 	int pos = *ppos;
 	int cnt, size = 256;
 
@@ -107,7 +85,7 @@ static int isapnp_proc_attach_device(struct pnp_dev *dev)
 			&isapnp_proc_bus_file_operations, dev);
 	if (!e)
 		return -ENOMEM;
-	e->size = 256;
+	proc_set_size(e, 256);
 	return 0;
 }