net: fec: add return value check after calling .of_property_read_u32()

Add return value check after calling .of_property_read_u32() to avoid
the warning reported by coverity.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 91a1664..886a9c9 100644 (file)
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -3197,9 +3197,9 @@ static void fec_reset_phy(struct platform_device *pdev)
        if (!np)
                return;
 
-       of_property_read_u32(np, "phy-reset-duration", &msec);
+       err = of_property_read_u32(np, "phy-reset-duration", &msec);
        /* A sane reset duration should not be longer than 1s */
-       if (msec > 1000)
+       if (!err && msec > 1000)
                msec = 1;
 
        phy_reset = of_get_named_gpio(np, "phy-reset-gpios", 0);