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linux/drivers
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Shubhrajyoti Datta 88adb09fe8 net: axienet: Fix double deregister of mdio 
[ Upstream commit 03bc7cab7d ]

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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05 09:20:02 +02:00
..
accessibility
…
acpi
nfit: fix unchecked dereference in acpi_nfit_ctl
2018-08-24 13:12:38 +02:00
amba
ARM: amba: Don't read past the end of sysfs "driver_override" buffer
2018-05-01 15:13:08 -07:00
android
binder: add missing binder_unlock()
2018-02-28 10:18:33 +01:00
ata
libahci: Fix possible Spectre-v1 pmp indexing in ahci_led_store()
2018-08-24 13:12:28 +02:00
atm
atm: zatm: Fix potential Spectre v1
2018-07-22 14:27:36 +02:00
auxdisplay
auxdisplay: img-ascii-lcd: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
2018-02-13 12:35:55 +01:00
base
x86/speculation/l1tf: Add sysfs reporting for l1tf
2018-08-15 18:14:45 +02:00
bcma
…
block
loop: remember whether sysfs_create_group() was done
2018-07-17 11:37:54 +02:00
bluetooth
Bluetooth: btusb: Add a new Realtek 8723DE ID 2ff8:b011
2018-08-03 07:55:16 +02:00
bus
drivers/perf: arm-ccn: don't log to dmesg in event_init
2018-08-03 07:55:19 +02:00
cdrom
cdrom: do not call check_disk_change() inside cdrom_open()
2018-05-30 07:50:47 +02:00
char
tpm: fix race condition in tpm_common_write()
2018-08-15 18:14:41 +02:00
clk
clk: at91: PLL recalc_rate() now using cached MUL and DIV values
2018-07-03 11:23:13 +02:00
clocksource
clocksource/drivers/fsl_ftm_timer: Fix error return checking
2018-05-30 07:50:32 +02:00
connector
…
cpufreq
cpufreq: Fix new policy initialization during limits updates via sysfs
2018-06-26 08:08:08 +08:00
cpuidle
cpuidle: powernv: Fix promotion from snooze if next state disabled
2018-07-03 11:23:08 +02:00
crypto
crypto: padlock-aes - Fix Nano workaround data corruption
2018-08-06 16:23:04 +02:00
dax
device-dax: implement ->split() to catch invalid munmap attempts
2018-02-28 10:18:33 +01:00
dca
…
devfreq
PM / devfreq: Fix potential NULL pointer dereference in governor_store
2018-04-13 19:48:09 +02:00
dio
…
dma
dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate()
2018-08-24 13:12:33 +02:00
dma-buf
dma-buf: remove redundant initialization of sg_table
2018-06-06 16:44:33 +02:00
edac
EDAC, altera: Fix ARM64 build warning
2018-08-03 07:55:21 +02:00
eisa
…
extcon
…
firewire
firewire-ohci: work around oversized DMA reads on JMicron controllers
2018-05-30 07:50:18 +02:00
firmware
firmware: dmi_scan: Fix handling of empty DMI strings
2018-05-30 07:50:24 +02:00
fmc
…
fpga
…
gpio
gpio: No NULL owner
2018-06-16 09:52:33 +02:00
gpu
drm/imx: imx-ldb: check if channel is enabled before printing warning
2018-09-05 09:20:00 +02:00
hid
HID: wacom: Correct touch maximum XY of 2nd-gen Intuos
2018-08-24 13:12:35 +02:00
hsi
HSI: ssi_protocol: double free in ssip_pn_xmit()
2018-03-24 11:00:12 +01:00
hv
Drivers: hv: vmbus: do not mark HV_PCIE as perf_device
2018-04-20 08:20:41 +02:00
hwmon
hwmon: (pmbus/adm1275) Accept negative page register values
2018-05-30 07:50:46 +02:00
hwspinlock
…
hwtracing
hwtracing: stm: fix build error on some arches
2018-06-06 16:44:38 +02:00
i2c
i2c: davinci: Avoid zero value of CLKH
2018-09-05 09:20:01 +02:00
ide
cdrom: do not call check_disk_change() inside cdrom_open()
2018-05-30 07:50:47 +02:00
idle
idle: i7300: add PCI dependency
2018-02-25 11:05:55 +01:00
iio
iio: pressure: bmp280: fix relative humidity unit
2018-08-24 13:12:31 +02:00
infiniband
RDMA/mlx5: Fix memory leak in mlx5_ib_create_srq() error path
2018-08-24 13:12:38 +02:00
input
Input: elan_i2c - add another ACPI ID for Lenovo Ideapad 330-15AST
2018-08-03 07:55:11 +02:00
iommu
iommu/vt-d: Use domain instead of cache fetching
2018-05-30 07:50:20 +02:00
ipack
…
irqchip
arm64: Add hypervisor safe helper for checking constant capabilities
2018-06-06 16:44:35 +02:00
isdn
isdn: Disable IIOCDBGVAR
2018-08-22 07:47:14 +02:00
leds
leds: pca955x: Correct I2C Functionality
2018-04-13 19:48:03 +02:00
lguest
…
lightnvm
…
macintosh
drivers: macintosh: rack-meter: really fix bogus memsets
2018-05-30 07:50:42 +02:00
mailbox
…
mcb
…
md
md/raid10: fix that replacement cannot complete recovery after reassemble
2018-08-24 13:12:33 +02:00
media
media: si470x: fix __be16 annotations
2018-08-03 07:55:26 +02:00
memory
memory: tegra: Apply interrupts mask per SoC
2018-08-03 07:55:24 +02:00
memstick
…
message
scsi: mptfusion: Add bounds check in mptctl_hp_targetinfo()
2018-05-25 16:13:06 +02:00
mfd
mfd: cros_ec: Fail early if we cannot identify the EC
2018-08-03 07:55:16 +02:00
misc
vmw_balloon: fix inflation with batching
2018-07-17 11:37:51 +02:00
mmc
mmc: pwrseq: Use kmalloc_array instead of stack VLA
2018-08-03 07:55:24 +02:00
mtd
mtd: nand: qcom: Add a NULL check for devm_kasprintf()
2018-08-15 18:14:43 +02:00
net
net: axienet: Fix double deregister of mdio
2018-09-05 09:20:02 +02:00
nfc
NFC: pn533: Fix wrong GFP flag usage
2018-08-24 13:12:32 +02:00
ntb
ntb_transport: Fix bug with max_mw_size parameter
2018-05-30 07:50:22 +02:00
nubus
…
nvdimm
linvdimm, pmem: Preserve read-only setting for pmem devices
2018-07-03 11:23:13 +02:00
nvme
nvmet: reset keep alive timer in controller enable
2018-08-24 13:12:30 +02:00
nvmem
nvmem: properly handle returned value nvmem_reg_read
2018-08-03 07:55:22 +02:00
of
of: unittest: for strings, account for trailing \0 in property length field
2018-07-03 11:23:08 +02:00
oprofile
…
parisc
parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode
2018-05-30 07:50:43 +02:00
parport
parport_pc: Add support for WCH CH382L PCI-E single parallel port card.
2018-04-08 12:12:57 +02:00
pci
PCI: pciehp: Fix unprotected list iteration in IRQ handler
2018-08-24 13:12:43 +02:00
pcmcia
…
perf
drivers/perf: arm_pmu: handle no platform_device
2018-03-22 09:17:51 +01:00
phy
phy: work around 'phys' references to usb-nop-xceiv devices
2018-01-23 19:57:07 +01:00
pinctrl
pinctrl: nsp: Fix potential NULL dereference
2018-08-24 13:12:39 +02:00
platform
platform/x86: asus-wmi: Fix NULL pointer dereference
2018-06-26 08:08:05 +08:00
pnp
…
power
power: supply: bq2415x: check for NULL acpi_id to avoid null pointer dereference
2018-04-29 11:31:56 +02:00
powercap
PowerCap: Fix an error code in powercap_register_zone()
2018-04-13 19:47:56 +02:00
pps
…
ps3
…
ptp
ptp: fix missing break in switch
2018-07-25 11:24:01 +02:00
pwm
pwm: lpss: platform: Save/restore the ctrl register over a suspend/resume
2018-07-03 11:23:16 +02:00
rapidio
drivers/rapidio/devices/rio_mport_cdev.c: fix resource leak in error handling path in 'rio_dma_transfer()'
2017-12-14 09:28:22 +01:00
ras
…
regulator
regulator: pfuze100: add .is_enable() for pfuze100_swb_regulator_ops
2018-08-03 07:55:20 +02:00
remoteproc
…
reset
…
rpmsg
rpmsg: smd: do not use mananged resources for endpoints and channels
2018-07-03 11:23:13 +02:00
rtc
rtc: ensure rtc_set_alarm fails when alarms are not supported
2018-08-03 07:55:13 +02:00
s390
scsi: zfcp: fix missing REC trigger trace on enqueue without ERP thread
2018-07-03 11:23:12 +02:00
sbus
…
scsi
scsi: libiscsi: fix possible NULL pointer dereference in case of TMF
2018-09-05 09:20:00 +02:00
sfi
…
sh
…
sn
…
soc
soc: qcom: wcnss_ctrl: Fix increment in NV upload
2018-05-30 07:50:47 +02:00
spi
spi: bcm-qspi: fIX some error handling paths
2018-05-30 07:50:45 +02:00
spmi
…
ssb
…
staging
media: staging: omap4iss: Include asm/cacheflush.h after generic includes
2018-09-05 09:20:01 +02:00
target
tcm_fileio: Prevent information leak for short reads
2018-03-24 11:00:20 +01:00
tc
…
thermal
thermal: exynos: fix setting rising_threshold for Exynos5433
2018-08-03 07:55:23 +02:00
thunderbolt
thunderbolt: Resume control channel after hibernation image is created
2018-04-24 09:34:12 +02:00
tty
serial: 8250_dw: Add ACPI support for uart on Broadcom SoC
2018-08-22 07:47:15 +02:00
uio
uio: fix incorrect memory leak cleanup
2018-04-13 19:47:59 +02:00
usb
usb: gadget: f_uac2: fix endianness of 'struct cntrl_*_lay3'
2018-09-05 09:20:00 +02:00
uwb
…
vfio
vfio: platform: Fix reset module leak in error path
2018-08-03 07:55:13 +02:00
vhost
vhost_net: validate sock before trying to put its fd
2018-07-22 14:27:38 +02:00
video
video: uvesafb: Fix integer overflow in allocation
2018-07-03 11:23:16 +02:00
virt
…
virtio
virtio_balloon: fix another race between migration and ballooning
2018-08-06 16:23:04 +02:00
vlynq
…
vme
…
w1
1wire: family module autoload fails because of upper/lower case mismatch.
2018-07-03 11:23:06 +02:00
watchdog
watchdog: sbsa: use 32-bit read for WCV
2018-05-30 07:50:34 +02:00
xen
xen/scsiback: add error handling for xenbus_printf
2018-08-24 13:12:29 +02:00
zorro
zorro: Set up z->dev.dma_mask for the DMA API
2018-05-30 07:50:44 +02:00
Kconfig
…
Makefile
usb: build drivers/usb/common/ when USB_SUPPORT is set
2018-02-25 11:05:45 +01:00