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Chuanhong Guo 0452800f6d net: dsa: mt7530: fix null pointer dereferencing in port5 setup 
The 2nd gmac of mediatek soc ethernet may not be connected to a PHY
and a phy-handle isn't always available.
Unfortunately, mt7530 dsa driver assumes that the 2nd gmac is always
connected to switch port 5 and setup mt7530 according to phy address
of 2nd gmac node, causing null pointer dereferencing when phy-handle
isn't defined in dts.
This commit fix this setup code by checking return value of
of_parse_phandle before using it.

Fixes: 38f790a805 ("net: dsa: mt7530: Add support for port 5")
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: René van Dorst <opensource@vdorst.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-03 16:10:32 -07:00
..
accessibility
console: Don't perform test for CON_BRL flag
2020-02-11 10:43:36 +01:00
acpi
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 16:40:08 -07:00
amba
…
android
binderfs: use refcount for binder control devices too
2020-03-11 19:33:52 +01:00
ata
ata: make "libata.force" kernel parameter optional
2020-03-26 10:28:20 -06:00
atm
atm: nicstar: fix if-statement empty body warning
2020-02-29 21:28:30 -08:00
auxdisplay
auxdisplay: charlcd: replace zero-length array with flexible-array member
2020-03-06 22:18:07 +01:00
base
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-03-31 17:29:33 -07:00
bcma
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-01-28 16:02:33 -08:00
block
Merge tag 'for-5.7/drivers-2020-03-29' of git://git.kernel.dk/linux-block
2020-03-30 11:43:51 -07:00
bluetooth
Bluetooth: btusb: print Intel fw build version in power-on boot
2020-03-16 08:57:40 +01:00
bus
Merge tag 'omap-for-v5.6/fixes-rc6-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
2020-03-25 14:27:22 +01:00
cdrom
scsi: compat_ioctl: cdrom: Replace .ioctl with .compat_ioctl in four appropriate places
2020-02-24 15:06:07 -05:00
char
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 16:40:08 -07:00
clk
clk: imx: Align imx sc clock parent msg structs to 4
2020-03-25 18:46:05 -07:00
clocksource
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2020-03-31 10:05:01 -07:00
connector
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counter
counter: 104-quad-8: Support Differential Encoder Cable Status
2020-03-08 17:28:53 +00:00
cpufreq
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2020-03-31 10:05:01 -07:00
cpuidle
Merge branches 'pm-core', 'pm-sleep', 'pm-acpi' and 'pm-domains'
2020-03-30 14:46:58 +02:00
crypto
crypto/chcr: Add missing include file <linux/highmem.h>
2020-04-02 06:55:06 -07:00
dax
dax: Get rid of fs_dax_get_by_host() helper
2020-01-16 09:52:27 -08:00
dca
…
devfreq
PM / devfreq: Fix handling dev_pm_qos_remove_request result
2020-03-25 08:35:03 +09:00
dio
dio: Fix dio_bus_match() kerneldoc
2020-03-09 11:12:19 +01:00
dma
dmaengine: ti: k3-udma-glue: Fix an error handling path in 'k3_udma_glue_cfg_rx_flow()'
2020-03-23 11:48:34 +05:30
dma-buf
dma-buf: free dmabuf->name in dma_buf_release()
2020-02-27 18:01:58 +05:30
edac
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 16:40:08 -07:00
eisa
…
extcon
extcon: axp288: Convert to new X86 CPU match macros
2020-03-24 21:34:11 +01:00
firewire
…
firmware
Merge tag 'mmc-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
2020-03-31 16:13:09 -07:00
fpga
…
fsi
fsi: aspeed: add unspecified HAS_IOMEM dependency
2020-02-10 13:45:49 -08:00
gnss
…
gpio
gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 CHT + AXP288 model
2020-03-24 10:06:54 +01:00
gpu
Merge tag 'pm-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2020-03-30 15:05:01 -07:00
greybus
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hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
2020-03-17 09:38:03 -07:00
hsi
drivers: hsi: Call cpu_latency_qos_*() instead of pm_qos_*()
2020-02-14 10:37:23 +01:00
hv
Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
2020-02-03 14:42:03 +00:00
hwmon
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 16:40:08 -07:00
hwspinlock
hwspinlock: sirf: Use devm_hwspin_lock_register() to register hwlock controller
2020-01-21 16:16:36 -08:00
hwtracing
intel_th: pci: Add Elkhart Lake CPU support
2020-03-18 11:32:56 +01:00
i2c
i2c: pca-platform: Use platform_irq_get_optional
2020-03-28 05:03:17 +01:00
i3c
i3c: convert to use i2c_new_client_device()
2020-03-29 10:35:50 +02:00
ide
Merge tag 'v5.6' into mips-next
2020-03-30 13:31:37 +02:00
idle
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 16:40:08 -07:00
iio
staging: iio: adc: ad7192: Re-indent enum labels
2020-03-23 11:43:42 +01:00
infiniband
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-03-31 17:29:33 -07:00
input
Merge tag 'driver-core-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2020-03-30 13:59:52 -07:00
interconnect
interconnect: Handle memory allocation errors
2020-03-03 08:02:57 +01:00
iommu
iommu/vt-d: Populate debugfs if IOMMUs are detected
2020-03-14 20:02:43 +01:00
ipack
…
irqchip
Merge tag 'mips_5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
2020-03-31 08:51:45 -07:00
isdn
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
leds
leds: lm3532: add pointer to documentation and fix typo
2020-01-22 21:08:24 +01:00
lightnvm
Merge tag 'for-5.7/drivers-2020-03-29' of git://git.kernel.dk/linux-block
2020-03-30 11:43:51 -07:00
macintosh
macintosh: windfarm: fix MODINFO regression
2020-03-10 12:30:59 +01:00
mailbox
…
mcb
…
md
Merge tag 'for-5.7/drivers-2020-03-29' of git://git.kernel.dk/linux-block
2020-03-30 11:43:51 -07:00
media
Merge tag 'pm-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2020-03-30 15:05:01 -07:00
memory
Merge tag 'mvebu-drivers-5.6-1' of git://git.infradead.org/linux-mvebu into arm/drivers
2020-01-16 10:45:44 -08:00
memstick
…
message
Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net
2020-01-19 22:10:04 +01:00
mfd
Merge tag 'tag-chrome-platform-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
2020-02-04 07:17:41 +00:00
misc
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2020-03-31 10:05:01 -07:00
mmc
Merge tag 'mmc-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
2020-03-31 16:13:09 -07:00
most
staging: most: move core files out of the staging area
2020-03-24 13:42:44 +01:00
mtd
mtd: spi-nor: remove mtk-quadspi driver
2020-03-11 19:56:08 +00:00
mux
…
net
net: dsa: mt7530: fix null pointer dereferencing in port5 setup
2020-04-03 16:10:32 -07:00
nfc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-03-25 18:58:11 -07:00
ntb
NTB: add pci shutdown handler for AMD NTB
2020-03-13 10:04:20 -04:00
nubus
…
nvdimm
block: simplify queue allocation
2020-03-27 10:23:43 -06:00
nvme
Merge tag 'for-5.7/drivers-2020-03-29' of git://git.kernel.dk/linux-block
2020-03-30 11:43:51 -07:00
nvmem
Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2020-02-07 12:54:13 -08:00
of
Merge tag 'driver-core-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2020-03-30 13:59:52 -07:00
opp
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
oprofile
…
parisc
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
parport
…
pci
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-03-31 17:29:33 -07:00
pcmcia
…
perf
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2020-03-31 10:05:01 -07:00
phy
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-03-31 17:29:33 -07:00
pinctrl
Merge tag 'irq-core-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 17:35:14 -07:00
platform
Merge tag 'platform-drivers-x86-v5.7-1' of git://git.infradead.org/linux-platform-drivers-x86
2020-03-31 16:43:40 -07:00
pnp
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
power
Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2020-02-08 13:55:25 -08:00
powercap
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 16:40:08 -07:00
pps
…
ps3
…
ptp
ptp: Avoid deadlocks in the programmable pin code.
2020-03-30 11:16:38 -07:00
pwm
clocksource/drivers/timer-ti-dm: Enable autoreload in set_pwm
2020-03-16 12:40:51 +01:00
rapidio
…
ras
…
regulator
Merge tag 'regulator-spi-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc
2020-03-30 14:58:26 -07:00
remoteproc
remoteproc: clean up notification config
2020-03-16 17:31:51 -07:00
reset
reset: intel: add unspecified HAS_IOMEM dependency
2020-02-10 11:11:55 +01:00
rpmsg
rpmsg: add rpmsg support for mt8183 SCP.
2020-01-20 10:29:56 -08:00
rtc
Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 16:13:08 -07:00
s390
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-03-31 17:29:33 -07:00
sbus
…
scsi
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-03-31 17:29:33 -07:00
sfi
…
sh
…
siox
siox: Use the correct style for SPDX License Identifier
2020-01-14 21:46:53 +01:00
slimbus
slimbus: ngd: add v2.1.0 compatible
2020-03-12 16:51:15 +01:00
soc
soc: samsung: chipid: Fix return value on non-Exynos platforms
2020-03-25 14:27:27 +01:00
soundwire
soundwire: cadence: fix kernel-doc parameter descriptions
2020-01-16 17:34:38 +05:30
spi
Merge tag 'pm-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2020-03-30 15:05:01 -07:00
spmi
spmi: pmic-arb: Set lockdep class for hierarchical irq domains
2020-02-10 13:16:04 +01:00
ssb
ssb: Use scnprintf() for avoiding potential buffer overflow
2020-03-12 15:44:12 +02:00
staging
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-03-31 17:29:33 -07:00
target
scsi: Revert "target: iscsi: Wait for all commands to finish before freeing a session"
2020-02-14 17:13:54 -05:00
tc
Merge tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
2020-01-31 11:28:31 -08:00
tee
Merge tag 'tee-amdtee-fix2-for-5.6' of https://git.linaro.org/people/jens.wiklander/linux-tee into arm/fixes
2020-03-25 14:27:27 +01:00
thermal
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 17:01:51 -07:00
thunderbolt
Merge 5.6-rc7 into usb-next
2020-03-23 08:04:08 +01:00
tty
Merge tag 'tty-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2020-03-31 16:18:55 -07:00
uio
uio: uio_pdrv_genirq: Do not log an error when deferring probe routine.
2020-01-14 15:27:51 +01:00
usb
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 16:17:15 -07:00
vfio
Merge tag 'vfio-v5.6-rc1' of git://github.com/awilliam/linux-vfio
2020-02-03 22:22:05 +00:00
vhost
vhost: Check docket sk_family instead of call getname
2020-02-22 21:41:42 -08:00
video
Merge tag 'mips_5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
2020-03-31 08:51:45 -07:00
virt
…
virtio
virtio_balloon: Adjust label in virtballoon_probe
2020-03-08 05:35:24 -04:00
visorbus
visorbus: fix uninitialized variable access
2020-01-14 15:30:35 +01:00
vlynq
…
vme
Merge tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2020-01-29 10:35:54 -08:00
w1
Merge tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2020-01-29 10:35:54 -08:00
watchdog
watchdog: iTCO_wdt: Make ICH_RES_IO_SMI optional
2020-03-10 10:20:37 +01:00
xen
Merge tag 'smp-core-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 18:06:39 -07:00
zorro
zorro: Replace zero-length array with flexible-array member
2020-03-09 11:12:19 +01:00
Kconfig
staging: most: move core files out of the staging area
2020-03-24 13:42:44 +01:00
Makefile
staging: most: move core files out of the staging area
2020-03-24 13:42:44 +01:00