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Johan Hovold ac63043d8c net: stmmac: dwmac-sun8i: fix OF child-node lookup 
Use the new of_get_compatible_child() helper to lookup the mdio-internal
child node instead of using of_find_compatible_node(), which searches
the entire tree from a given start node and thus can return an unrelated
(i.e. non-child) node.

This also addresses a potential use-after-free (e.g. after probe
deferral) as the tree-wide helper drops a reference to its first
argument (i.e. the mdio-mux node). Fortunately, this was inadvertently
balanced by a failure to drop the mdio-mux reference after lookup.

While at it, also fix the related mdio-internal- and phy-node reference
leaks.

Fixes: 634db83b82 ("net: stmmac: dwmac-sun8i: Handle integrated/external MDIOs")
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Jose Abreu <joabreu@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
 		2018-10-23 13:28:52 -05:00
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accessibility
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acpi libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
amba
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android android: binder: Rate-limit debug and userspace triggered err msgs 2018-08-08 11:05:47 +02:00
ata ata: ftide010: Add a quirk for SQ201 2018-08-27 14:25:54 -06:00
atm
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auxdisplay Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00
base PM / clk: signedness bug in of_pm_clk_add_clks() 2018-08-24 11:52:34 +02:00
bcma
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block for-linus-20180830 2018-08-30 13:39:04 -07:00
bluetooth Bluetooth: mediatek: Fix memory leak 2018-08-21 16:56:20 +02:00
bus bus: mvebu-mbus: Convert to using %pOFn instead of device_node.name 2018-09-28 16:41:57 -05:00
cdrom cdrom: Fix info leak/OOB read in cdrom_ioctl_drive_status 2018-08-29 08:09:20 -06:00
char RTC for 4.19 2018-08-20 16:30:27 -07:00
clk clk: mvebu: use for_each_of_cpu_node iterator 2018-09-28 14:25:58 -05:00
clocksource RISC-V Updates for the 4.19 Merge Window 2018-08-19 09:56:38 -07:00
connector
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cpufreq ARM: SoC driver updates 2018-08-23 13:52:46 -07:00
cpuidle cpuidle: menu: Retain tick when shallow state is selected 2018-08-25 13:16:08 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-08-29 13:38:39 -07:00
dax libnvdimm-for-4.19_dax-memory-failure 2018-08-25 18:43:59 -07:00
dca
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devfreq devfreq: Convert to using %pOFn instead of device_node.name 2018-09-28 16:43:41 -05:00
dio
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dma Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
dma-buf
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edac edac: cpc925: use for_each_of_cpu_node iterator 2018-09-28 14:25:58 -05:00
eisa
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extcon
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firewire firewire: use 64-bit time_t based interfaces 2018-08-17 16:20:27 -07:00
firmware firmware: Convert to using %pOFn instead of device_node.name 2018-10-04 14:16:01 -05:00
fmc
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fpga
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fsi fsi: sbefifo: Bump max command length 2018-08-08 15:44:47 +10:00
gnss
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gpio - New Drivers 2018-08-20 15:38:44 -07:00
gpu drm/msm: fix OF child-node lookup 2018-10-23 13:20:04 -05:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2018-08-20 15:59:01 -07:00
hsi
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hv
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hwmon hwmon: (nct6775) Fix potential Spectre v1 2018-08-26 17:45:25 -07:00
hwspinlock
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hwtracing drivers/hwtracing/intel_th/msu.c: change return type to vm_fault_t 2018-08-23 18:48:43 -07:00
i2c i2c: sh_mobile: fix leak when using DMA bounce buffer 2018-08-30 23:13:59 +02:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide 2018-08-22 07:40:33 -07:00
idle
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iio treewide: convert ISO_8859-1 text comments to utf-8 2018-08-23 18:48:43 -07:00
infiniband Second merge window update 2018-08-23 15:34:48 -07:00
input ARM: 32-bit SoC platform updates 2018-08-23 13:44:43 -07:00
iommu iommu: fsl_pamu: use for_each_of_cpu_node iterator 2018-09-28 14:25:58 -05:00
ipack
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irqchip Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-08-26 09:55:28 -07:00
isdn isdn: Disable IIOCDBGVAR 2018-08-16 12:26:24 -07:00
leds leds: ns2: Change unsigned to unsigned int 2018-08-06 23:03:12 +02:00
lightnvm
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macintosh macintosh: therm_windtunnel: drop using attach_adapter 2018-08-24 14:42:42 +02:00
mailbox mailbox: Add support for i.MX messaging unit 2018-08-15 09:53:07 +05:30
mcb
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md libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
media Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
memory ARM: SoC driver updates 2018-08-23 13:52:46 -07:00
memstick
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message
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mfd Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-08-21 17:40:46 -07:00
misc Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
mmc mmc: renesas_sdhi_internal_dmac: mask DMAC interrupts 2018-08-23 10:00:49 +02:00
mtd mtd: rawnand: denali: do not pass zero maxchips to nand_scan() 2018-08-27 20:41:46 +02:00
mux
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net net: stmmac: dwmac-sun8i: fix OF child-node lookup 2018-10-23 13:28:52 -05:00
nfc
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ntb
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nubus
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nvdimm libnvdimm-for-4.19_dax-memory-failure 2018-08-25 18:43:59 -07:00
nvme nvmet: free workqueue object if module init fails 2018-08-28 08:40:44 +02:00
nvmem
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of of: Add missing exports of node name compare functions 2018-10-22 09:03:54 -05:00
opp
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oprofile
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parisc
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parport Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00
pci Merge branch 'akpm' (patches from Andrew) 2018-08-22 12:34:08 -07:00
pcmcia pcmcia: remove long deprecated pcmcia_request_exclusive_irq() function 2018-08-18 12:30:42 -07:00
perf Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00
phy
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pinctrl - New Drivers 2018-08-20 15:38:44 -07:00
platform platform-drivers-x86 for v4.19-1 2018-08-22 14:14:15 -07:00
pnp
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power treewide: convert ISO_8859-1 text comments to utf-8 2018-08-23 18:48:43 -07:00
powercap
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pps
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ps3
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ptp Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00
pwm pwm: mediatek: Add MT7628 support 2018-08-20 11:36:07 +02:00
rapidio drivers/rapidio/devices/rio_mport_cdev.c: remove redundant pointer md 2018-08-22 10:52:51 -07:00
ras
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regulator - New Drivers 2018-08-20 15:38:44 -07:00
remoteproc remoteproc/davinci: use the reset framework 2018-08-16 17:39:55 -07:00
reset ARM: SoC: late updates 2018-08-25 14:12:36 -07:00
rpmsg
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rtc RTC for 4.19 2018-08-20 16:30:27 -07:00
s390 libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
sbus
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scsi Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
sfi
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sh
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siox
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slimbus
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sn
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soc soc: Convert to using %pOFn instead of device_node.name 2018-10-04 14:16:01 -05:00
soundwire
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spi hwspinlock updates for v4.19 2018-08-18 16:45:27 -07:00
spmi
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ssb ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG 2018-08-09 18:47:47 +03:00
staging ARM: SoC driver updates 2018-08-23 13:52:46 -07:00
target Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
tc
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tee ARM: SoC driver updates 2018-08-23 13:52:46 -07:00
thermal Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal 2018-08-28 16:11:34 -07:00
thunderbolt
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tty powerpc fixes for 4.19 #2 2018-08-24 09:34:23 -07:00
uio Char/Misc fix for 4.19-rc1 2018-08-19 09:30:44 -07:00
usb ARM: SoC driver updates 2018-08-23 13:52:46 -07:00
uwb
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vfio powerpc updates for 4.19 2018-08-17 11:32:50 -07:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-08-27 11:59:39 -07:00
video fbdev: fsl-diu: get cpu node with of_get_cpu_node 2018-09-28 14:25:58 -05:00
virt
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virtio virtio, vhost: fixes, tweaks 2018-08-24 08:45:19 -07:00
visorbus
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vlynq
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vme
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w1 power supply and reset changes for the v4.19 series 2018-08-21 18:06:27 -07:00
watchdog include/linux/compiler*.h: make compiler-*.h mutually exclusive 2018-08-22 17:31:34 -07:00
xen xen: fixes for 4.19-rc2 2018-08-31 08:45:16 -07:00
zorro
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Kconfig
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Makefile Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00