From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexey Brodkin Subject: [PATCH v2] stmmac: fix check for phydev being open Date: Mon, 7 Sep 2015 23:50:19 +0300 Message-ID: <1441659019-25522-1-git-send-email-abrodkin@synopsys.com> Cc: Alexey Brodkin , Giuseppe Cavallaro , linux-kernel@vger.kernel.org, stable@vger.kernel.org, David Miller , Sergei Shtylyov To: netdev@vger.kernel.org Return-path: Sender: stable-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Current implementation via IS_ERR(phydev) may make no sense because of_phy_attach() returns NULL on failure instead of error value. Still for checking result of phy_connect() IS_ERR() is useful. To address both situations we use combined IS_ERR_OR_NULL() check. Cc: Giuseppe Cavallaro Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org Cc: David Miller Cc: Sergei Shtylyov Signed-off-by: Alexey Brodkin --- Changes compared to v1: * Use IS_ERR_OR_NULL() instead of discrete checks for null and err drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 864b476..7985d8a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -837,7 +837,7 @@ static int stmmac_init_phy(struct net_device *dev) interface); } - if (IS_ERR(phydev)) { + if (IS_ERR_OR_NULL(phydev)) { pr_err("%s: Could not attach to PHY\n", dev->name); return PTR_ERR(phydev); } -- 2.4.3