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authorPeter Senna Tschudin <peter.senna@gmail.com>2012-10-28 06:12:01 +0000
committerDavid S. Miller <davem@davemloft.net>2012-11-02 21:36:06 -0400
commitaa731872f7d33dcb8b54dad0cfb82d4e4d195d7e (patch)
treef8994162cac3f92d9a9579f51eb3fe563f0aad4c /drivers/net
parent57c10b61c84bfed68b1b317d6f507a392724b9c4 (diff)
downloadlinux-aa731872f7d33dcb8b54dad0cfb82d4e4d195d7e.tar.gz
drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free
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 <peter.senna@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/phy/mdio-bitbang.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/phy/mdio-bitbang.c b/drivers/net/phy/mdio-bitbang.c
index daec9b05d168..6428fcbbdd4b 100644
--- 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 *bus)
 	struct mdiobb_ctrl *ctrl = bus->priv;
 
 	module_put(ctrl->ops->owner);
+	mdiobus_unregister(bus);
 	mdiobus_free(bus);
 }
 EXPORT_SYMBOL(free_mdio_bitbang);