On 9/30/2015 1:00 PM, Jiri Slaby wrote:
From: Alexey Brodkin <Alexey.Brodkin@xxxxxxxxxxxx>
This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.
I do -- of_phy_connect() isn't called in this version, so the patch is
totally useless.
===============
commit dfc50fcaad574e5c8c85cbc83eca1426b2413fa4 upstream.
Current check of phydev with IS_ERR(phydev) may make not much sense
because of_phy_connect() returns NULL on failure instead of error value.
Still for checking result of phy_connect() IS_ERR() makes perfect sense.
So let's use combined check IS_ERR_OR_NULL() that covers both cases.
Cc: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
Cc: Giuseppe Cavallaro <peppe.cavallaro@xxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: David Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Alexey Brodkin <abrodkin@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 8d4ccd35a016..14c0d31c10ad 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -801,8 +801,11 @@ static int stmmac_init_phy(struct net_device *dev)
phydev = phy_connect(dev, phy_id_fmt, &stmmac_adjust_link, interface);
- if (IS_ERR(phydev)) {
+ if (IS_ERR_OR_NULL(phydev)) {
pr_err("%s: Could not attach to PHY\n", dev->name);
+ if (!phydev)
+ return -ENODEV;
+
return PTR_ERR(phydev);
}
MBR, Sergei
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