From: "Maciej S. Szmigiero" <m...@maciej.szmigiero.name> Date: Thu, 03 Sep 2015 21:38:30 +0200
> If fec MDIO write method succeeds its return value comes from > call to pm_runtime_get_sync(). > But pm_runtime_get_sync() can also return 1. > > In case of Micrel KSZ9031 PHY this value will then > be returned along the call chain of phy_write() -> > ksz9031_extended_write() -> ksz9031_center_flp_timing() -> > ksz9031_config_init() -> phy_init_hw() -> phy_attach_direct() -> > phy_connect_direct(). > > Then phy_connect() will cast it into a pointer using ERR_PTR(), > which then fec_enet_mii_probe() will try to dereference > resulting in an oops. > > Fix it by normalizing return value of pm_runtime_get_sync() > to be zero if positive in MDIO write method. > > Signed-off-by: Maciej Szmigiero <m...@maciej.szmigiero.name> Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
