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pci/proc: switch to fixed_size_llseek()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-06-23 12:29:00 +04:00
parent c09ed2a6fa
commit 54de90d686
1 changed files with 2 additions and 21 deletions
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23
drivers/pci/proc.c
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@ -20,27 +20,8 @@ static int proc_initialized; /* = 0 */
static loff_t static loff_t
proc_bus_pci_lseek(struct file *file, loff_t off, int whence) proc_bus_pci_lseek(struct file *file, loff_t off, int whence)
{ {
loff_t new = -1; struct pci_dev *dev = PDE_DATA(file_inode(file));
struct inode *inode = file_inode(file); return fixed_size_llseek(file, off, whence, dev->cfg_size);
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;
} }
static ssize_t static ssize_t