net: stmmac: Fix unused values warnings

The commit 8532f613bc78 ("net: stmmac: introduce MSI Interrupt routines
for mac, safety, RX & TX") introduced the converity warnings:-

  1. Unused value (UNUSED_VALUE)
     assigned_value: Assigning value REQ_IRQ_ERR_MAC to irq_err here,
     but that stored value is not used.

  2. Unused value (UNUSED_VALUE)
     assigned_value: Assigning value REQ_IRQ_ERR_NO to irq_err here,
     but that stored value is overwritten before it can used.

  3. Unused value (UNUSED_VALUE)
     assigned_value: Assigning value REQ_IRQ_ERR_WOL to irq_err here,
     but that stored value is not used.

Fixed these by removing the unnecessary value assignments.

Fixes: 8532f613bc78 ("net: stmmac: introduce MSI Interrupt routines for mac, safety, RX & TX")
Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index db97cd4..4177fd6 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3406,8 +3406,8 @@ static void stmmac_free_irq(struct net_device *dev,
 
 static int stmmac_request_irq_multi_msi(struct net_device *dev)
 {
-       enum request_irq_err irq_err = REQ_IRQ_ERR_NO;
        struct stmmac_priv *priv = netdev_priv(dev);
+       enum request_irq_err irq_err;
        cpumask_t cpu_mask;
        int irq_idx = 0;
        char *int_name;
@@ -3554,8 +3554,8 @@ irq_error:
 
 static int stmmac_request_irq_single(struct net_device *dev)
 {
-       enum request_irq_err irq_err = REQ_IRQ_ERR_NO;
        struct stmmac_priv *priv = netdev_priv(dev);
+       enum request_irq_err irq_err;
        int ret;
 
        ret = request_irq(dev->irq, stmmac_interrupt,
@@ -3565,7 +3565,7 @@ static int stmmac_request_irq_single(struct net_device *dev)
                           "%s: ERROR: allocating the IRQ %d (error: %d)\n",
                           __func__, dev->irq, ret);
                irq_err = REQ_IRQ_ERR_MAC;
-               return ret;
+               goto irq_error;
        }
 
        /* Request the Wake IRQ in case of another line
@@ -3579,7 +3579,7 @@ static int stmmac_request_irq_single(struct net_device *dev)
                                   "%s: ERROR: allocating the WoL IRQ %d (%d)\n",
                                   __func__, priv->wol_irq, ret);
                        irq_err = REQ_IRQ_ERR_WOL;
-                       return ret;
+                       goto irq_error;
                }
        }