This is a note to let you know that I've just added the patch titled
net: cpsw: fix null dereference at probe
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:
net-cpsw-fix-null-dereference-at-probe.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 6954cc1f238199e971ec905c5cc87120806ac981 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@xxxxxxxxx>
Date: Thu, 8 May 2014 10:09:23 +0200
Subject: net: cpsw: fix null dereference at probe
From: Johan Hovold <jhovold@xxxxxxxxx>
commit 6954cc1f238199e971ec905c5cc87120806ac981 upstream.
Fix null-pointer dereference at probe when the mdio platform device is
missing (e.g. when it has been disabled in DT).
Signed-off-by: Johan Hovold <jhovold@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/ti/cpsw.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1884,6 +1884,10 @@ static int cpsw_probe_dt(struct cpsw_pla
mdio_node = of_find_node_by_phandle(be32_to_cpup(parp));
phyid = be32_to_cpup(parp+1);
mdio = of_find_device_by_node(mdio_node);
+ if (!mdio) {
+ pr_err("Missing mdio platform device\n");
+ return -EINVAL;
+ }
snprintf(slave_data->phy_id, sizeof(slave_data->phy_id),
PHY_ID_FMT, mdio->name, phyid);
Patches currently in stable-queue which might be from jhovold@xxxxxxxxx are
queue-3.14/net-cpsw-fix-null-dereference-at-probe.patch
queue-3.14/revert-net-eth-cpsw-correctly-attach-to-gpio-bitbang-mdio.patch
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