[patch 2/2] pci: write file size to inode on proc bus file write

From: David Rientjes
Date: Thu Sep 27 2007 - 16:41:37 EST

When a /proc/bus/pci file is written to, the size of that PCI device's
configuration space must be written to the inode. Otherwise, it is
possible for the file to specify a size of 0 on stat if a task is holding
the same file open.

Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
drivers/pci/proc.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -129,7 +129,7 @@ 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;
@@ -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;

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