1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 90adc62d07ff..716439e25dd2 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -60,7 +60,7 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp
          */
 
         if (capable(CAP_SYS_ADMIN))
-                size = dev->cfg_size;
+                size = dp->size;
         else if (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)
                 size = 128;
         else
@@ -129,11 +129,11 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp
 static ssize_t
 proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, loff_t *ppos)
 {
-        const struct inode *ino = file->f_path.dentry->d_inode;
+        struct inode *ino = file->f_path.dentry->d_inode;
         const struct proc_dir_entry *dp = PDE(ino);
         struct pci_dev *dev = dp->data;
         int pos = *ppos;
-        int size = dev->cfg_size;
+        int size = dp->size;
         int cnt;
 
         if (pos >= size)
@@ -193,6 +193,7 @@ proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, lof
         }
 
         *ppos = pos;
+        i_size_write(ino, dp->size);
         return nbytes;
 }