This is a note to let you know that I've just added the patch titled
stmmac: fix check for phydev being open
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
stmmac-fix-check-for-phydev-being-open.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From dfc50fcaad574e5c8c85cbc83eca1426b2413fa4 Mon Sep 17 00:00:00 2001
From: Alexey Brodkin <Alexey.Brodkin@xxxxxxxxxxxx>
Date: Wed, 9 Sep 2015 18:01:08 +0300
Subject: stmmac: fix check for phydev being open
From: Alexey Brodkin <Alexey.Brodkin@xxxxxxxxxxxx>
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: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -810,8 +810,11 @@ static int stmmac_init_phy(struct net_de
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);
}
Patches currently in stable-queue which might be from Alexey.Brodkin@xxxxxxxxxxxx are
queue-3.14/stmmac-troubleshoot-unexpected-bits-in-des0-des1.patch
queue-3.14/stmmac-fix-check-for-phydev-being-open.patch
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