1 files changed, 2 insertions, 21 deletions

diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 08126087ec31..cdc7836d7e3d 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -20,27 +20,8 @@ static int proc_initialized;	/* = 0 */
 static loff_t
 proc_bus_pci_lseek(struct file *file, loff_t off, int whence)
 {
-        loff_t new = -1;
-        struct inode *inode = file_inode(file);
-
-        mutex_lock(&inode->i_mutex);
-        switch (whence) {
-        case 0:
-                new = off;
-                break;
-        case 1:
-                new = file->f_pos + off;
-                break;
-        case 2:
-                new = inode->i_size + off;
-                break;
-        }
-        if (new < 0 || new > inode->i_size)
-                new = -EINVAL;
-        else
-                file->f_pos = new;
-        mutex_unlock(&inode->i_mutex);
-        return new;
+        struct pci_dev *dev = PDE_DATA(file_inode(file));
+        return fixed_size_llseek(file, off, whence, dev->cfg_size);
 }
 
 static ssize_t