net: ena: remove devm from ethtool

JIRA: https://issues.redhat.com/browse/RHEL-94831

commit d206880
Author: Rosen Penev <rosenp@gmail.com>
Date:   Fri Nov 1 14:48:27 2024 -0700

    net: ena: remove devm from ethtool

    There's no need for devm bloat here. In addition, these are freed right
    before the function exits.

    Also swapped kcalloc order for consistency.

    Signed-off-by: Rosen Penev <rosenp@gmail.com>
    Reviewed-by: Shay Agroskin <shayagr@amazon.com>
    Link: https://patch.msgid.link/20241101214828.289752-2-rosenp@gmail.com
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Signed-off-by: Dennis Chen <dechen@redhat.com>

Author: dchen5022

drivers/net/ethernet/amazon/ena/ena_ethtool.c

@@ -1129,22 +1129,18 @@ static void ena_dump_stats_ex(struct ena_adapter *adapter, u8 *buf)
 		return;
 	}
 
-	strings_buf = devm_kcalloc(&adapter->pdev->dev,
-				   ETH_GSTRING_LEN, strings_num,
-				   GFP_ATOMIC);
+	strings_buf = kcalloc(strings_num, ETH_GSTRING_LEN, GFP_ATOMIC);
 	if (!strings_buf) {
 		netif_err(adapter, drv, netdev,
 			  "Failed to allocate strings_buf\n");
 		return;
 	}
 
-	data_buf = devm_kcalloc(&adapter->pdev->dev,
-				strings_num, sizeof(u64),
-				GFP_ATOMIC);
+	data_buf = kcalloc(strings_num, sizeof(u64), GFP_ATOMIC);
 	if (!data_buf) {
 		netif_err(adapter, drv, netdev,
 			  "Failed to allocate data buf\n");
-		devm_kfree(&adapter->pdev->dev, strings_buf);
+		kfree(strings_buf);
 		return;
 	}
 
@@ -1166,8 +1162,8 @@ static void ena_dump_stats_ex(struct ena_adapter *adapter, u8 *buf)
 				  strings_buf + i * ETH_GSTRING_LEN,
 				  data_buf[i]);
 
-	devm_kfree(&adapter->pdev->dev, strings_buf);
-	devm_kfree(&adapter->pdev->dev, data_buf);
+	kfree(strings_buf);
+	kfree(data_buf);
 }
 
 void ena_dump_stats_to_buf(struct ena_adapter *adapter, u8 *buf)