[PATCH] USB: kfree cleanup for drivers/usb/* - no need to check for NULL

Get rid of a bunch of redundant NULL pointer checks in drivers/usb/*,
there's no need to check a pointer for NULL before calling kfree() on it.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>


Index: gregkh-2.6/drivers/usb/class/audio.c
===================================================================

1 files changed, 3 insertions, 7 deletions

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 4afd905fe2fe..4c788c767a97 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1347,9 +1347,7 @@ static int ftdi_common_startup (struct usb_serial *serial)
         priv->flags = ASYNC_LOW_LATENCY;
 
         /* Increase the size of read buffers */
-        if (port->bulk_in_buffer) {
-                kfree (port->bulk_in_buffer);
-        }
+        kfree(port->bulk_in_buffer);
         port->bulk_in_buffer = kmalloc (BUFSZ, GFP_KERNEL);
         if (!port->bulk_in_buffer) {
                 kfree (priv);
@@ -1365,10 +1363,8 @@ static int ftdi_common_startup (struct usb_serial *serial)
                 usb_free_urb (port->write_urb);
                 port->write_urb = NULL;
         }
-        if (port->bulk_out_buffer) {
-                kfree (port->bulk_out_buffer);
-                port->bulk_out_buffer = NULL;
-        }
+        kfree(port->bulk_out_buffer);
+        port->bulk_out_buffer = NULL;
 
         usb_set_serial_port_data(serial->port[0], priv);