USB: "sparse" cleanups for usb gadgets

This removes complaints about the gadget stack which are generated by
the currrent "sparse":  it doesn't like the fact that zero is the null
pointer.  (Last I checked, C guarantees that's correct ...)

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index a3376739a81b..593e23507b1a 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -1723,7 +1723,8 @@ rx_submit (struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags)
                 size += sizeof (struct rndis_packet_msg_type);
         size -= size % dev->out_ep->maxpacket;
 
-        if ((skb = alloc_skb (size + NET_IP_ALIGN, gfp_flags)) == 0) {
+        skb = alloc_skb(size + NET_IP_ALIGN, gfp_flags);
+        if (skb == NULL) {
                 DEBUG (dev, "no rx skb\n");
                 goto enomem;
         }