This is a note to let you know that I've just added the patch titled
drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free
to the 3.4-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:
drivers-net-phy-mdio-bitbang.c-call-mdiobus_unregister-before-mdiobus_free.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 111f54cfd6727b18a032e5434e7b4c425f428c34 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <[email protected]>
Date: Sun, 28 Oct 2012 06:12:01 +0000
Subject: drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before
mdiobus_free
From: Peter Senna Tschudin <[email protected]>
[ Upstream commit aa731872f7d33dcb8b54dad0cfb82d4e4d195d7e ]
Based on commit b27393aecf66199f5ddad37c302d3e0cfadbe6c0
Calling mdiobus_free without calling mdiobus_unregister causes
BUG_ON(). This patch fixes the issue.
The semantic patch that found this issue(http://coccinelle.lip6.fr/):
// <smpl>
@@
expression E;
@@
... when != mdiobus_unregister(E);
+ mdiobus_unregister(E);
mdiobus_free(E);
// </smpl>
Signed-off-by: Peter Senna Tschudin <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/phy/mdio-bitbang.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/net/phy/mdio-bitbang.c
+++ b/drivers/net/phy/mdio-bitbang.c
@@ -234,6 +234,7 @@ void free_mdio_bitbang(struct mii_bus *b
struct mdiobb_ctrl *ctrl = bus->priv;
module_put(ctrl->ops->owner);
+ mdiobus_unregister(bus);
mdiobus_free(bus);
}
EXPORT_SYMBOL(free_mdio_bitbang);
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/drivers-net-ethernet-nxp-lpc_eth.c-call-mdiobus_unregister-before-mdiobus_free.patch
queue-3.4/drivers-net-phy-mdio-bitbang.c-call-mdiobus_unregister-before-mdiobus_free.patch
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