[PATCH] USB: Fix irda-usb use after use

Don't read from free'd memory after calling netif_rx().  docopy is used as
a boolean (0 and 1) so unsigned int is sufficient.

Coverity bug #928

Signed-off-by: Eugene Teo <eugene.teo@eugeneteo.net>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index 8936058a3cce..6e2ec56cde0b 100644
--- a/drivers/net/irda/irda-usb.c
+++ b/drivers/net/irda/irda-usb.c
@@ -740,7 +740,7 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs)
         struct sk_buff *newskb;
         struct sk_buff *dataskb;
         struct urb *next_urb;
-        int             docopy;
+        unsigned int len, docopy;
 
         IRDA_DEBUG(2, "%s(), len=%d\n", __FUNCTION__, urb->actual_length);
         
@@ -851,10 +851,11 @@ static void irda_usb_receive(struct urb *urb, struct pt_regs *regs)
         dataskb->dev = self->netdev;
         dataskb->mac.raw  = dataskb->data;
         dataskb->protocol = htons(ETH_P_IRDA);
+        len = dataskb->len;
         netif_rx(dataskb);
 
         /* Keep stats up to date */
-        self->stats.rx_bytes += dataskb->len;
+        self->stats.rx_bytes += len;
         self->stats.rx_packets++;
         self->netdev->last_rx = jiffies;