[NET]: Fix reversed error test in netif_tx_trylock
A non-zero return value indicates success from spin_trylock,
not error.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 76cc099..75f02d8 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -924,10 +924,10 @@
static inline int netif_tx_trylock(struct net_device *dev)
{
- int err = spin_trylock(&dev->_xmit_lock);
- if (!err)
+ int ok = spin_trylock(&dev->_xmit_lock);
+ if (likely(ok))
dev->xmit_lock_owner = smp_processor_id();
- return err;
+ return ok;
}
static inline void netif_tx_unlock(struct net_device *dev)