broadcom: b44: Use b44_writephy() return value

Return result of b44_writephy() instead of zero to
deal with possible error.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c
index 392ec09..3e4fb3c 100644 (file)
--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -1793,11 +1793,9 @@ static int b44_nway_reset(struct net_device *dev)
        b44_readphy(bp, MII_BMCR, &bmcr);
        b44_readphy(bp, MII_BMCR, &bmcr);
        r = -EINVAL;
-       if (bmcr & BMCR_ANENABLE) {
-               b44_writephy(bp, MII_BMCR,
-                            bmcr | BMCR_ANRESTART);
-               r = 0;
-       }
+       if (bmcr & BMCR_ANENABLE)
+               r = b44_writephy(bp, MII_BMCR,
+                                bmcr | BMCR_ANRESTART);
        spin_unlock_irq(&bp->lock);
 
        return r;