net: ethernet: renesas: ravb_main: don't open code of_device_get_match_data()

This change will also make Coverity happy by avoiding a theoretical NULL
pointer dereference; yet another reason is to use the above helper function
to tighten the code and make it more readable.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 744d7806a9eec63e1c4fb18cc7b57fa96d73fcbc..86449c357168ebb4cd6c6fa25d1503583b8cd82d 100644 (file)
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1722,7 +1722,6 @@ static int ravb_set_gti(struct net_device *ndev)
 static int ravb_probe(struct platform_device *pdev)
 {
        struct device_node *np = pdev->dev.of_node;
-       const struct of_device_id *match;
        struct ravb_private *priv;
        enum ravb_chip_id chip_id;
        struct net_device *ndev;
@@ -1754,8 +1753,7 @@ static int ravb_probe(struct platform_device *pdev)
        ndev->base_addr = res->start;
        ndev->dma = -1;
 
-       match = of_match_device(of_match_ptr(ravb_match_table), &pdev->dev);
-       chip_id = (enum ravb_chip_id)match->data;
+       chip_id = (enum ravb_chip_id)of_device_get_match_data(&pdev->dev);
 
        if (chip_id == RCAR_GEN3)
                irq = platform_get_irq_byname(pdev, "ch22");