[<prev] [next>] [day] [month] [year] [list]
Date: Mon, 2 Mar 2020 21:45:45 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Paul Cercueil <paul@...pouillou.net>,
"H . Nikolaus Schaller" <hns@...delico.com>,
Mathieu Malaterre <malat@...ian.org>,
Andrew Lunn <andrew@...n.ch>,
"David S . Miller" <davem@...emloft.net>,
Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.5 36/66] net: ethernet: dm9000: Handle -EPROBE_DEFER in dm9000_parse_dt()
From: Paul Cercueil <paul@...pouillou.net>
[ Upstream commit 9a6a0dea16177ccaecc116f560232e63bec115f1 ]
The call to of_get_mac_address() can return -EPROBE_DEFER, for instance
when the MAC address is read from a NVMEM driver that did not probe yet.
Cc: H. Nikolaus Schaller <hns@...delico.com>
Cc: Mathieu Malaterre <malat@...ian.org>
Signed-off-by: Paul Cercueil <paul@...pouillou.net>
Reviewed-by: Andrew Lunn <andrew@...n.ch>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/net/ethernet/davicom/dm9000.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index cce90b5925d93..70060c51854fd 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -1405,6 +1405,8 @@ static struct dm9000_plat_data *dm9000_parse_dt(struct device *dev)
mac_addr = of_get_mac_address(np);
if (!IS_ERR(mac_addr))
ether_addr_copy(pdata->dev_addr, mac_addr);
+ else if (PTR_ERR(mac_addr) == -EPROBE_DEFER)
+ return ERR_CAST(mac_addr);
return pdata;
}
--
2.20.1
Powered by blists - more mailing lists