| Message ID | 1452902294-30860-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/net/phy/mdio-mux.c b/drivers/net/phy/mdio-mux.c index 4d4d25e..ac8a823 100644 --- a/drivers/net/phy/mdio-mux.c +++ b/drivers/net/phy/mdio-mux.c @@ -148,9 +148,14 @@ int mdio_mux_init(struct device *dev, } cb->bus_number = v; cb->parent = pb; + cb->mii_bus = mdiobus_alloc(); + if (!cb->mii_bus) { + ret_val = -ENOMEM; + of_node_put(child_bus_node); + break; + } cb->mii_bus->priv = cb; - cb->mii_bus->irq = cb->phy_irq; cb->mii_bus->name = "mdio_mux"; snprintf(cb->mii_bus->id, MII_BUS_ID_SIZE, "%x.%x",
This is a note to let you know that I have just added a patch titled net: phy: mdio-mux: Check return value of mdiobus_alloc() to the linux-4.2.y-queue branch of the 4.2.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-4.2.y-queue This patch is scheduled to be released in version 4.2.8-ckt2. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 4.2.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ---8<------------------------------------------------------------ From d8b5f9470b4f67626719784595aab82f4fd6663a Mon Sep 17 00:00:00 2001 From: Tobias Klauser <tklauser@distanz.ch> Date: Mon, 14 Dec 2015 13:51:51 +0100 Subject: net: phy: mdio-mux: Check return value of mdiobus_alloc() commit 20b08e1a793d898f0f13040d5418ee0955f678cf upstream. mdiobus_alloc() might return NULL, but its return value is not checked in mdio_mux_init(). This could potentially lead to a NULL pointer dereference. Fix it by checking the return value Fixes: 0ca2997d1452 ("netdev/of/phy: Add MDIO bus multiplexer support.") Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/net/phy/mdio-mux.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) -- 1.9.1