staging: ozwpan: Remove useless return variables

This patch remove variables that are initialized with a constant,
are never updated, and are only used as parameter of return.
Return the constant instead of using a variable.

Verified by compilation only.

The coccinelle script that find and fixes this issue is:
// <smpl>
@@
type T;
constant C;
identifier ret;
@@
- T ret = C;
... when != ret
- return ret;
+ return C;
// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/ozwpan/ozhcd.c b/drivers/staging/ozwpan/ozhcd.c
index 91bb29e093225e00f115cfd3a452a6e8dad487f9..30bd9286d47d20d556b1adf1424dbe9f85763c5f 100644 (file)
--- a/drivers/staging/ozwpan/ozhcd.c
+++ b/drivers/staging/ozwpan/ozhcd.c
@@ -2011,7 +2011,6 @@ static void oz_get_hub_descriptor(struct usb_hcd *hcd,
 static int oz_set_port_feature(struct usb_hcd *hcd, u16 wvalue, u16 windex)
 {
        struct oz_port *port;
-       int err = 0;
        u8 port_id = (u8)windex;
        struct oz_hcd *ozhcd = oz_hcd_private(hcd);
        unsigned set_bits = 0;
@@ -2078,7 +2077,7 @@ static int oz_set_port_feature(struct usb_hcd *hcd, u16 wvalue, u16 windex)
                spin_unlock_bh(&port->port_lock);
        }
        oz_dbg(HUB, "Port[%d] status = 0x%x\n", port_id, port->status);
-       return err;
+       return 0;
 }
 
 /*
@@ -2087,7 +2086,6 @@ static int oz_set_port_feature(struct usb_hcd *hcd, u16 wvalue, u16 windex)
 static int oz_clear_port_feature(struct usb_hcd *hcd, u16 wvalue, u16 windex)
 {
        struct oz_port *port;
-       int err = 0;
        u8 port_id = (u8)windex;
        struct oz_hcd *ozhcd = oz_hcd_private(hcd);
        unsigned clear_bits = 0;
@@ -2154,7 +2152,7 @@ static int oz_clear_port_feature(struct usb_hcd *hcd, u16 wvalue, u16 windex)
        }
        oz_dbg(HUB, "Port[%d] status = 0x%x\n",
               port_id, ozhcd->ports[port_id-1].status);
-       return err;
+       return 0;
 }
 
 /*