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4d5c58b15c
linux/drivers/net
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Shubhrajyoti Datta 03bc7cab7d net: axienet: Fix double deregister of mdio 
If the registration fails then mdio_unregister is called.
However at unbind the unregister ia attempted again resulting
in the below crash

[   73.544038] kernel BUG at drivers/net/phy/mdio_bus.c:415!
[   73.549362] Internal error: Oops - BUG: 0 [#1] SMP
[   73.554127] Modules linked in:
[   73.557168] CPU: 0 PID: 2249 Comm: sh Not tainted 4.14.0 #183
[   73.562895] Hardware name: xlnx,zynqmp (DT)
[   73.567062] task: ffffffc879e41180 task.stack: ffffff800cbe0000
[   73.572973] PC is at mdiobus_unregister+0x84/0x88
[   73.577656] LR is at axienet_mdio_teardown+0x18/0x30
[   73.582601] pc : [<ffffff80085fa4cc>] lr : [<ffffff8008616858>]
pstate: 20000145
[   73.589981] sp : ffffff800cbe3c30
[   73.593277] x29: ffffff800cbe3c30 x28: ffffffc879e41180
[   73.598573] x27: ffffff8008a21000 x26: 0000000000000040
[   73.603868] x25: 0000000000000124 x24: ffffffc879efe920
[   73.609164] x23: 0000000000000060 x22: ffffffc879e02000
[   73.614459] x21: ffffffc879e02800 x20: ffffffc87b0b8870
[   73.619754] x19: ffffffc879e02800 x18: 000000000000025d
[   73.625050] x17: 0000007f9a719ad0 x16: ffffff8008195bd8
[   73.630345] x15: 0000007f9a6b3d00 x14: 0000000000000010
[   73.635640] x13: 74656e7265687465 x12: 0000000000000030
[   73.640935] x11: 0000000000000030 x10: 0101010101010101
[   73.646231] x9 : 241f394f42533300 x8 : ffffffc8799f6e98
[   73.651526] x7 : ffffffc8799f6f18 x6 : ffffffc87b0ba318
[   73.656822] x5 : ffffffc87b0ba498 x4 : 0000000000000000
[   73.662117] x3 : 0000000000000000 x2 : 0000000000000008
[   73.667412] x1 : 0000000000000004 x0 : ffffffc8799f4000
[   73.672708] Process sh (pid: 2249, stack limit = 0xffffff800cbe0000)

Fix the same by making the bus NULL on unregister.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-24 16:38:01 -07:00
..
appletalk
arcnet
bonding bonding: set default miimon value for non-arp modes if not set 2018-07-21 10:26:21 -07:00
caif
can can: xilinx_can: fix power management handling 2018-07-23 14:34:46 +02:00
dsa net: dsa: mv88e6xxx: fix races between lock and irq freeing 2018-07-21 22:42:41 -07:00
ethernet net: axienet: Fix double deregister of mdio 2018-07-24 16:38:01 -07:00
fddi net: fddi: fix a possible null-ptr-deref 2018-06-08 18:47:46 -04:00
fjes
hamradio net: hamradio: use eth_broadcast_addr 2018-06-20 07:51:43 +09:00
hippi treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
hyperv hv_netvsc: Fix napi reschedule while receive completion is busy 2018-07-18 15:23:30 -07:00
ieee802154 net: ieee802154: adf7242: Fix OCL calibration runs 2018-07-09 10:53:12 +02:00
ipvlan ipvlan: call dev_change_flags when ipvlan mode is reset 2018-07-02 20:38:09 +09:00
netdevsim netdevsim: Add extack error message for devlink reload 2018-06-05 12:32:37 -04:00
phy net: phy: consider PHY_IGNORE_INTERRUPT in phy_start_aneg_priv 2018-07-21 16:20:38 -07:00
plip
ppp Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
slip treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
team treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
usb qmi_wwan: fix interface number for DW5821e production firmware 2018-07-24 16:37:13 -07:00
vmxnet3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-05-21 16:01:54 -04:00
wan treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
wimax
wireless wireless-drivers fixes for 4.18 2018-07-03 23:29:29 +09:00
xen-netback treewide: Use array_size() in vzalloc() 2018-06-12 16:19:22 -07:00
dummy.c
eql.c
geneve.c net: fix use-after-free in GRO with ESP 2018-07-02 20:34:04 +09:00
gtp.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
ifb.c ifb: fix packets checksum 2018-05-28 23:02:22 -04:00
Kconfig virtio_net: Extend virtio to use VF datapath when available 2018-05-28 22:59:54 -04:00
LICENSE.SRC
loopback.c
macsec.c
macvlan.c macvlan: Use software path for offloaded local, broadcast, and multicast traffic 2018-04-25 08:26:19 -07:00
macvtap.c
Makefile net: Introduce net_failover driver 2018-05-28 22:59:54 -04:00
mdio.c
mii.c
net_failover.c net: net_failover: fix typo in net_failover_slave_register() 2018-06-20 07:56:44 +09:00
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c
tap.c net: in virtio_net_hdr only add VLAN_HLEN to csum_start if payload holds vlan 2018-06-07 16:15:38 -04:00
thunderbolt.c
tun.c tun: Fix use-after-free on XDP_TX 2018-07-16 13:38:29 -07:00
veth.c
virtio_net.c virtio_net: split XDP_TX kick and XDP_REDIRECT map flushing 2018-06-28 14:27:52 +09:00
vrf.c vrf: add CRC32c offload to device features 2018-05-28 22:55:13 -04:00
vsockmon.c
vxlan.c vxlan: fix default fdb entry netlink notify ordering during netdev create 2018-07-22 10:52:37 -07:00
xen-netfront.c xen-netfront: Update features after registering netdev 2018-06-22 07:54:54 +09:00