From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Walle Date: Wed, 24 Feb 2021 17:40:39 +0100 Subject: [PATCH 1/4] net: dsa: return early if there is no master In-Reply-To: <20210224164042.21747-1-michael@walle.cc> References: <20210224164042.21747-1-michael@walle.cc> Message-ID: <20210224164042.21747-2-michael@walle.cc> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de It doesn't make sense to have DSA without a master port. Error out early if there is no master port. Fixes: fc054d563bfb ("net: Introduce DSA class for Ethernet switches") Signed-off-by: Michael Walle Reviewed-by: Vladimir Oltean --- net/dsa-uclass.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/dsa-uclass.c b/net/dsa-uclass.c index 2ce9ddb90d..88a8ea9352 100644 --- a/net/dsa-uclass.c +++ b/net/dsa-uclass.c @@ -280,6 +280,10 @@ static int dsa_port_probe(struct udevice *pdev) if (!port_pdata->phy) return -ENODEV; + master = dsa_get_master(dev); + if (!master) + return -ENODEV; + /* * Inherit port's hwaddr from the DSA master, unless the port already * has a unique MAC address specified in the environment. @@ -288,10 +292,6 @@ static int dsa_port_probe(struct udevice *pdev) if (!is_zero_ethaddr(env_enetaddr)) return 0; - master = dsa_get_master(dev); - if (!master) - return 0; - master_pdata = dev_get_plat(master); eth_pdata = dev_get_plat(pdev); memcpy(eth_pdata->enetaddr, master_pdata->enetaddr, ARP_HLEN); -- 2.20.1