aboutsummaryrefslogtreecommitdiffstats
path: root/target
diff options
context:
space:
mode:
authorGabor Juhos <juhosg@openwrt.org>2009-12-11 19:32:58 +0000
committerGabor Juhos <juhosg@openwrt.org>2009-12-11 19:32:58 +0000
commitf4e935e035e343953959038446e47901428c05dd (patch)
tree82ccfbf44b23f68dfae5fa9c2949af834cf08fdf /target
parentaf7712e5a7fc15fd592355cdaeef6190b109c0dc (diff)
downloadmaster-187ad058-f4e935e035e343953959038446e47901428c05dd.tar.gz
master-187ad058-f4e935e035e343953959038446e47901428c05dd.tar.bz2
master-187ad058-f4e935e035e343953959038446e47901428c05dd.zip
ar71xx: fix NULL pointer dereference in the ethernet driver
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18755 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target')
-rw-r--r--target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c
index 547f72edba..4233152aec 100644
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c
@@ -309,9 +309,11 @@ int ag71xx_phy_connect(struct ag71xx *ag)
}
/* Reset the mdio bus explicitly */
- mutex_lock(&ag->mii_bus->mdio_lock);
- ag->mii_bus->reset(ag->mii_bus);
- mutex_unlock(&ag->mii_bus->mdio_lock);
+ if (ag->mii_bus->reset) {
+ mutex_lock(&ag->mii_bus->mdio_lock);
+ ag->mii_bus->reset(ag->mii_bus);
+ mutex_unlock(&ag->mii_bus->mdio_lock);
+ }
if (pdata->phy_mask)
return ag71xx_phy_connect_multi(ag);