isapnp: switch to fixed_size_llseek()

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

1 files changed, 1 insertions, 21 deletions

diff --git a/drivers/pnp/isapnp/proc.c b/drivers/pnp/isapnp/proc.c
index 2365ef37ae24..5edee645d890 100644
--- 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,