isapnp: switch to fixed_size_llseek()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/pnp/isapnp/proc.c b/drivers/pnp/isapnp/proc.c
index 2365ef3..5edee64 100644 (file)
--- a/drivers/pnp/isapnp/proc.c
+++ b/drivers/pnp/isapnp/proc.c
@@ -29,27 +29,7 @@ static struct proc_dir_entry *isapnp_proc_bus_dir = NULL;
 
 static loff_t isapnp_proc_bus_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 = 256 + off;
-               break;
-       }
-       if (new < 0 || new > 256)
-               new = -EINVAL;
-       else
-               file->f_pos = new;
-       mutex_unlock(&inode->i_mutex);
-       return new;
+       return fixed_size_llseek(file, off, whence, 256);
 }
 
 static ssize_t isapnp_proc_bus_read(struct file *file, char __user * buf,