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Colin Ian King 1d8f062ebc drivers: base: swnode: check if pointer p is NULL before dereferencing it 
The pointer p can be potentially NULL as macro to_software_node can
return NULL.

Add null check on p before dereferencing it to avoid any NULL pointer
dereferences.

Detected by CoverityScan, CID#1476039 ("Explicit null dereferenced")

Fixes: 59abd83672 (drivers: base: Introducing software nodes to the firmware node framework)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 		2018-12-26 10:48:01 +01:00
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accessibility
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acpi Device properties framework updates for 4.21-rc1 2018-12-25 15:01:46 -08:00
amba
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android binder: fix race that allows malicious free of live buffer 2018-11-26 20:01:47 +01:00
ata libata: whitelist all SAMSUNG MZ7KM* solid-state disks 2018-12-03 12:54:39 -07:00
atm firestream: fix spelling mistake: "Inititing" -> "Initializing" 2018-11-27 15:32:06 -08:00
auxdisplay auxdisplay: charlcd: fix x/y command parsing 2018-12-21 21:27:21 +01:00
base drivers: base: swnode: check if pointer p is NULL before dereferencing it 2018-12-26 10:48:01 +01:00
bcma
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block for-linus-20181115 2018-11-16 09:31:59 -06:00
bluetooth Merge branch 'work.tty-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-10-24 14:43:41 +01:00
bus ARM: SoC driver updates for 4.17 2018-10-29 15:16:01 -07:00
cdrom gdrom: fix mistake in assignment of error 2018-10-25 11:17:40 -06:00
char RTC for 4.20 2018-10-27 09:24:24 -07:00
clk Merge branch 'clk-imx7ulp' into clk-next 2018-12-14 14:03:38 -08:00
clocksource Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-11-11 16:41:50 -06:00
connector
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cpufreq cpufreq: qcom-hw: Add support for QCOM cpufreq HW driver 2018-12-18 23:43:09 +01:00
cpuidle cpuidle: Add 'above' and 'below' idle state metrics 2018-12-12 23:22:18 +01:00
crypto crypto/chelsio/chtls: send/recv window update 2018-12-14 13:40:42 -08:00
dax
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dca
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devfreq PM / devfreq: add devfreq_suspend/resume() functions 2018-12-11 11:40:13 +09:00
dio
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dma dmaengine: dw: Fix FIFO size for Intel Merrifield 2018-12-06 22:53:05 +05:30
dma-buf dma-buf: add dma_fence_get_stub 2018-12-03 17:40:18 +01:00
edac EDAC, fsl_ddr: Add LS1021A to the list of supported hardware 2018-12-19 11:57:45 +01:00
eisa
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extcon
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firewire
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firmware efi: Prevent GICv3 WARN() by mapping the memreserve table before first use 2018-11-27 13:50:20 +01:00
fmc
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fpga fpga: add devm_fpga_region_create 2018-10-16 11:13:50 +02:00
fsi fsi: fsi-scom.c: Remove duplicate header 2018-11-26 10:13:04 +11:00
gnss gnss: sirf: fix activation retry handling 2018-12-06 17:22:23 +01:00
gpio regmap: Updates for v4.21 2018-12-25 14:48:06 -08:00
gpu drm pull request for 4.21-rc1 2018-12-25 11:48:26 -08:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2018-12-10 11:04:41 -08:00
hsi
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hv hyperv-fixes-4.20-rc6 2018-12-14 15:36:56 +01:00
hwmon hwmon: (w83795) temp4_type has writable permission 2018-11-18 14:34:56 -08:00
hwspinlock
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hwtracing stm class: Use memcat_p() 2018-10-11 12:12:55 +02:00
i2c platform-drivers-x86 for v4.21-1 2018-12-25 11:04:17 -08:00
i3c i3c: master: cdns: fix I2C transfers in Cadence I3C master driver 2018-12-12 17:08:32 +01:00
ide ide: Change to use DEFINE_SHOW_ATTRIBUTE macro 2018-12-02 22:09:09 -08:00
idle Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-10-23 13:32:18 +01:00
iio platform-drivers-x86 for v4.21-1 2018-12-25 11:04:17 -08:00
infiniband IB/core: Fix oops in netdev_next_upper_dev_rcu() 2018-12-12 12:14:49 -05:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2018-12-21 09:09:30 -08:00
iommu iommu/vt-d: Use memunmap to free memremap 2018-11-22 17:02:21 +01:00
ipack
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irqchip irqchip/irq-mvebu-sei: Fix a NULL vs IS_ERR() bug in probe function 2018-11-01 12:38:48 +01:00
isdn Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-11-01 19:58:52 -07:00
leds LEDs for 4.21-rc1 2018-12-25 14:52:50 -08:00
lightnvm lightnvm: pblk: guarantee that backpointer is respected on writer stall 2018-10-09 08:25:08 -06:00
macintosh memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
mailbox - Convert print users to use the %pOFn format specifier 2018-10-29 10:30:44 -07:00
mcb
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md dm thin: bump target version 2018-12-12 09:39:54 -05:00
media media fixes for v4.20-rc8 2018-12-25 13:11:30 -08:00
memory
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memstick
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message
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mfd mfd: axp20x: use explicit bit defines 2018-12-13 16:40:03 +00:00
misc misc: mic/scif: fix copy-paste error in scif_create_remote_lookup 2018-11-27 09:00:38 +01:00
mmc mmc: core: Use a minimum 1600ms timeout when enabling CACHE ctrl 2018-12-17 08:59:42 +01:00
mtd spi: Updates for v4.21 2018-12-25 14:43:54 -08:00
mux This is the bulk of GPIO changes for the v4.20 series: 2018-10-23 08:45:05 +01:00
net qmi_wwan: Fix qmap header retrieval in qmimux_rx_fixup 2018-12-21 10:58:45 -08:00
nfc NFC: nfcmrvl_uart: fix OF child-node lookup 2018-10-23 13:28:53 -05:00
ntb ntb: idt: Alter the driver info comments 2018-11-01 10:33:12 -04:00
nubus
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nvdimm libnvdimm, pfn: Pad pfn namespaces relative to other regions 2018-12-05 14:16:12 -08:00
nvme nvmet-rdma: fix response use after free 2018-12-07 07:11:11 -08:00
nvmem nvmem: core: fix regression in of_nvmem_cell_get() 2018-11-11 09:15:29 -08:00
of Devicetree fixes for 4.20-rc: 2018-11-09 16:41:58 -06:00
opp Merge branch 'opp/genpd/propagation' into opp/linux-next 2018-12-14 16:28:52 +05:30
oprofile
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parisc parisc: Add alternative coding infrastructure 2018-10-17 17:22:26 +02:00
parport
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pci ACPI updates for 4.21-rc1 2018-12-25 14:21:18 -08:00
pcmcia powerpc updates for 4.20 2018-10-26 14:36:21 -07:00
perf arm64 updates for 4.20: 2018-10-22 17:30:06 +01:00
phy phy: qcom-qusb2: Fix HSTX_TRIM tuning with fused value for SDM845 2018-11-21 13:13:58 +05:30
pinctrl pinctrl: sunxi: a83t: Fix IRQ offset typo for PH11 2018-12-07 13:32:19 +01:00
platform sound updates for 4.21 2018-12-25 13:19:10 -08:00
pnp
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power PM / AVS: SmartReflex: Switch to SPDX Licence ID 2018-12-12 13:54:28 +01:00
powercap Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-10-23 13:32:18 +01:00
pps
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ps3
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ptp ptp: drop redundant kasprintf() to create worker name 2018-10-28 19:20:06 -07:00
pwm pwm: imx: Add ipg clock operation 2018-12-24 12:06:56 +01:00
rapidio
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ras
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regulator Merge remote-tracking branch 'regulator/topic/coupled' into regulator-next 2018-12-21 13:43:35 +00:00
remoteproc remoteproc: qcom: q6v5-mss: Register segments/dumpfn for coredump 2018-10-19 12:54:03 -07:00
reset ARM: SoC driver updates for 4.17 2018-10-29 15:16:01 -07:00
rpmsg rpmsg: glink: smem: Support rx peak for size less than 4 bytes 2018-10-03 17:04:32 -07:00
rtc Staging and IIO driver fixes for 4.20-rc5 2018-11-30 12:23:44 -08:00
s390 virtio/s390: fix race in ccw_io_helper() 2018-12-06 14:22:35 -05:00
sbus drivers/sbus/char: add of_node_put() 2018-12-02 20:55:23 -08:00
scsi SCSI fixes on 20181221 2018-12-22 15:03:00 -08:00
sfi mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
sh
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siox
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slimbus slimbus: ngd: remove unnecessary check 2018-11-07 14:59:28 +01:00
sn
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soc soc/tegra: pmc: Drop SMP dependency from CPU APIs 2018-12-14 13:32:55 -08:00
soundwire
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spi spi: Updates for v4.21 2018-12-25 14:43:54 -08:00
spmi
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ssb ssb: chipcommon: fix fall-through annotation 2018-10-05 11:37:20 +03:00
staging media fixes for v4.20-rc8 2018-12-25 13:11:30 -08:00
target scsi: target: iscsi: cxgbit: add missing spin_lock_init() 2018-12-12 19:49:35 -05:00
tc TC: Set DMA masks for devices 2018-10-11 09:16:44 -07:00
tee
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thermal thermal: stm32: Fix stm_thermal_read_factory_settings 2018-12-10 20:15:28 -08:00
thunderbolt thunderbolt: Prevent root port runtime suspend during NVM upgrade 2018-11-26 20:38:49 +01:00
tty Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2018-12-21 14:23:57 -08:00
uio uio_hv_generic: set callbacks on open 2018-12-11 14:23:17 +01:00
usb platform-drivers-x86 for v4.21-1 2018-12-25 11:04:17 -08:00
uwb
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vfio VFIO updates for v4.20 2018-10-31 11:01:38 -07:00
vhost Revert "net: vhost: lock the vqs one by one" 2018-12-12 21:56:20 -08:00
video drm pull request for 4.21-rc1 2018-12-25 11:48:26 -08:00
virt
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virtio virtio-balloon: VIRTIO_BALLOON_F_PAGE_POISON 2018-10-24 20:57:55 -04:00
visorbus
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vlynq
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vme
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w1 w1: IAD Register is yet readable trough iad sys file. Fix snprintf (%u for unsigned, count for max size). 2018-10-15 20:50:32 +02:00
watchdog watchdog: ts4800: release syscon device node in ts4800_wdt_probe() 2018-10-22 10:16:28 +02:00
xen xen: fixes for 4.20-rc5 2018-12-02 12:15:55 -08:00
zorro
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Kconfig i3c: Add core I3C infrastructure 2018-11-12 10:33:49 +01:00
Makefile i3c: Add core I3C infrastructure 2018-11-12 10:33:49 +01:00