iavf: remove redundant ret variable

Return value directly instead of taking this in another redundant
variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Signed-off-by: CGEL ZTE <cgel.zte@gmail.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

drivers/net/ethernet/intel/iavf/iavf_main.c

@@ -1523,7 +1523,6 @@ static void iavf_fill_rss_lut(struct iavf_adapter *adapter)
 static int iavf_init_rss(struct iavf_adapter *adapter)
 {
 	struct iavf_hw *hw = &adapter->hw;
-	int ret;
 
 	if (!RSS_PF(adapter)) {
 		/* Enable PCTYPES for RSS, TCP/UDP with IPv4/IPv6 */
@@ -1539,9 +1538,8 @@ static int iavf_init_rss(struct iavf_adapter *adapter)
 
 	iavf_fill_rss_lut(adapter);
 	netdev_rss_key_fill((void *)adapter->rss_key, adapter->rss_key_size);
-	ret = iavf_config_rss(adapter);
 
-	return ret;
+	return iavf_config_rss(adapter);
 }
 
 /**
@@ -4745,8 +4743,6 @@ static struct pci_driver iavf_driver = {
  **/
 static int __init iavf_init_module(void)
 {
-	int ret;
-
 	pr_info("iavf: %s\n", iavf_driver_string);
 
 	pr_info("%s\n", iavf_copyright);
@@ -4757,8 +4753,7 @@ static int __init iavf_init_module(void)
 		pr_err("%s: Failed to create workqueue\n", iavf_driver_name);
 		return -ENOMEM;
 	}
-	ret = pci_register_driver(&iavf_driver);
-	return ret;
+	return pci_register_driver(&iavf_driver);
 }
 
 module_init(iavf_init_module);