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linux/drivers/net/ethernet
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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
..
3com net: prevent ISA drivers from building on PPC32 2018-07-22 11:12:29 -07:00
8390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-05-21 16:01:54 -04:00
adaptec
aeroflex
agere
alacritech
allwinner
alteon
altera ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
amazon treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
amd net: prevent ISA drivers from building on PPC32 2018-07-22 11:12:29 -07:00
apm net: Remove depends on HAS_DMA in case of platform dependency 2018-06-23 10:44:30 +09:00
apple net/macmace: Drop redundant MACH_IS_MAC test 2018-02-28 12:00:27 -05:00
aquantia net: aquantia: vlan unicast address list correct handling 2018-07-06 11:11:05 +09:00
arc net: Remove depends on HAS_DMA in case of platform dependency 2018-06-23 10:44:30 +09:00
atheros atl1c: reserve min skb headroom 2018-07-22 10:28:26 -07:00
aurora
broadcom bnx2x: Fix invalid memory access in rss hash config path. 2018-07-24 16:33:02 -07:00
brocade treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
cadence net: macb: Allocate valid memory for TX and RX BD prefetch 2018-07-07 20:54:25 +09:00
calxeda net: Remove depends on HAS_DMA in case of platform dependency 2018-06-23 10:44:30 +09:00
cavium net: cavium: Add fine-granular dependencies on PCI 2018-07-18 15:21:33 -07:00
chelsio net: cxgb3_main: fix potential Spectre v1 2018-07-18 13:31:15 -07:00
cirrus net: prevent ISA drivers from building on PPC32 2018-07-22 11:12:29 -07:00
cisco enic: do not overwrite error code 2018-06-20 08:10:13 +09:00
cortina treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
davicom treewide: simplify Kconfig dependencies for removed archs 2018-03-26 15:55:57 +02:00
dec
dlink
emulex be2net: Fix error detection logic for BE3 2018-05-29 10:57:25 -04:00
ezchip
faraday net/ncsi: Silence debug messages 2018-06-20 07:26:58 +09:00
freescale dpaa_eth: DPAA SGT needs to be 256B 2018-06-30 18:51:06 +09:00
fujitsu
hisilicon net: Remove depends on HAS_DMA in case of platform dependency 2018-06-23 10:44:30 +09:00
hp
huawei net-next/hinic: fix a problem in hinic_xmit_frame() 2018-07-19 23:27:32 -07:00
i825xx
ibm ibmvnic: Fix error recovery on login failure 2018-07-16 14:39:47 -07:00
intel ixgbe: Off by one in ixgbe_ipsec_tx() 2018-07-12 08:03:09 -07:00
marvell net: Remove depends on HAS_DMA in case of platform dependency 2018-06-23 10:44:30 +09:00
mediatek net: mediatek: use of_device_get_match_data() 2018-04-16 13:43:07 -04:00
mellanox net/mlx4_core: Save the qpn from the input modifier in RST2INIT wrapper 2018-07-24 16:30:48 -07:00
micrel treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
microchip lan743x: make functions lan743x_csr_read and lan743x_csr_read static 2018-03-12 11:12:38 -04:00
moxa treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
mscc net: mscc: make sparse happy 2018-06-23 10:42:02 +09:00
myricom ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
natsemi net/sonic: Use dma_mapping_error() 2018-05-31 14:17:33 -04:00
neterion treewide: Use array_size() in vzalloc() 2018-06-12 16:19:22 -07:00
netronome nfp: flower: ensure dead neighbour entries are not offloaded 2018-07-22 10:55:01 -07:00
ni treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
nuvoton
nvidia treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
nxp
oki-semi treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
packetengines
pasemi treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
qlogic qed: Correct Multicast API to reflect existence of 256 approximate buckets. 2018-07-21 16:19:04 -07:00
qualcomm net: qca_spi: Fix log level if probe fails 2018-07-18 15:19:08 -07:00
rdc
realtek r8169: restore previous behavior to accept BIOS WoL settings 2018-07-24 14:06:39 -07:00
renesas ravb: remove custom .set_link_ksettings from ethtool ops 2018-07-07 10:44:09 +09:00
rocker rocker: rocker_main: Ignore bridge VLAN events 2018-05-31 14:13:43 -04:00
samsung ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
seeq
sfc sfc: hold filter_sem consistently during reset 2018-07-12 14:52:04 -07:00
sgi
silan
sis
smsc arch: remove obsolete architecture ports 2018-04-02 20:20:12 -07:00
socionext treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
stmicro net: ethernet: stmmac: fix documentation warning 2018-07-16 13:42:44 -07:00
sun net: sungem: fix rx checksum support 2018-06-20 14:30:06 +09:00
synopsys
tehuti
ti net: ethernet: ti: davinci_cpdma: make function cpdma_desc_pool_create static 2018-06-22 09:31:09 +09:00
toshiba treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
tundra
via
wiznet
xilinx net: axienet: Fix double deregister of mdio 2018-07-24 16:38:01 -07:00
xircom
xscale
dnet.c
dnet.h
ec_bhf.c ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
ethoc.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
fealnx.c
jme.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
jme.h
Kconfig net: ethernet: Sort Kconfig sourcing alphabetically 2018-05-21 12:14:47 -04:00
korina.c
lantiq_etop.c
Makefile net: mscc: Add initial Ocelot switch support 2018-05-15 16:41:15 -04:00
netx-eth.c