netxen: fix smatch warning

o Fix pointless assignments
Signed-off-by: NAmit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/netxen/netxen_nic_hw.c

@@ -345,8 +345,7 @@ netxen_pcie_sem_lock(struct netxen_adapter *adapter, int sem, u32 id_reg)
 void
 netxen_pcie_sem_unlock(struct netxen_adapter *adapter, int sem)
 {
-	int val;
-	val = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_SEM_UNLOCK(sem)));
+	NXRD32(adapter, NETXEN_PCIE_REG(PCIE_SEM_UNLOCK(sem)));
 }
 
 int netxen_niu_xg_init_port(struct netxen_adapter *adapter, int port)

drivers/net/netxen/netxen_nic_init.c

@@ -784,7 +784,7 @@ netxen_need_fw_reset(struct netxen_adapter *adapter)
 	if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
 		return 1;
 
-	old_count = count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
+	old_count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
 
 	for (i = 0; i < 10; i++) {
 

drivers/net/netxen/netxen_nic_main.c

@@ -340,7 +340,7 @@ netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
 		if (!(first_boot & 0x4)) {
 			first_boot |= 0x4;
 			NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
-			first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
+			NXRD32(adapter, NETXEN_PCIE_REG(0x4));
 		}
 
 		/* This is the first boot after power up */