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authorDavid Rientjes <rientjes@google.com>2007-09-27 13:41:17 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-12 15:03:17 -0700
commitecb3908046ce9ce7feb44e2c2cf77ccdbe231f70 (patch)
treef890bb10d570e253e1ee29850e36c94512cabcec /drivers/pci
parentcd68602f36ceb65b24a9abcae10ca04a933c07fd (diff)
pci: write file size to inode on proc bus file write
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@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/proc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 73714db6995..716439e25dd 100644
--- 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;
}