Nikita Shubin 33afcf723a rtc: ep93xx: Fix NULL pointer dereference in ep93xx_rtc_read_time ... commit 00c33482bb upstream. Mismatch in probe platform_set_drvdata set's and method's that call dev_get_platdata will result in "Unable to handle kernel NULL pointer dereference", let's use according method for getting driver data after platform_set_drvdata. 8<--- cut here --- Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = (ptrval) [00000000] *pgd=00000000 Internal error: Oops: 5 [#1] ARM Modules linked in: CPU: 0 PID: 1 Comm: swapper Not tainted 5.9.10-00003-g723e101e0037-dirty #4 Hardware name: Technologic Systems TS-72xx SBC PC is at ep93xx_rtc_read_time+0xc/0x2c LR is at __rtc_read_time+0x4c/0x8c [...] [<c02b01c8>] (ep93xx_rtc_read_time) from [<c02ac38c>] (__rtc_read_time+0x4c/0x8c) [<c02ac38c>] (__rtc_read_time) from [<c02ac3f8>] (rtc_read_time+0x2c/0x4c) [<c02ac3f8>] (rtc_read_time) from [<c02acc54>] (__rtc_read_alarm+0x28/0x358) [<c02acc54>] (__rtc_read_alarm) from [<c02abd80>] (__rtc_register_device+0x124/0x2ec) [<c02abd80>] (__rtc_register_device) from [<c02b028c>] (ep93xx_rtc_probe+0xa4/0xac) [<c02b028c>] (ep93xx_rtc_probe) from [<c026424c>] (platform_drv_probe+0x24/0x5c) [<c026424c>] (platform_drv_probe) from [<c0262918>] (really_probe+0x218/0x374) [<c0262918>] (really_probe) from [<c0262da0>] (device_driver_attach+0x44/0x60) [<c0262da0>] (device_driver_attach) from [<c0262e70>] (__driver_attach+0xb4/0xc0) [<c0262e70>] (__driver_attach) from [<c0260d44>] (bus_for_each_dev+0x68/0xac) [<c0260d44>] (bus_for_each_dev) from [<c026223c>] (driver_attach+0x18/0x24) [<c026223c>] (driver_attach) from [<c0261dd8>] (bus_add_driver+0x150/0x1b4) [<c0261dd8>] (bus_add_driver) from [<c026342c>] (driver_register+0xb0/0xf4) [<c026342c>] (driver_register) from [<c0264210>] (__platform_driver_register+0x30/0x48) [<c0264210>] (__platform_driver_register) from [<c04cb9ac>] (ep93xx_rtc_driver_init+0x10/0x1c) [<c04cb9ac>] (ep93xx_rtc_driver_init) from [<c000973c>] (do_one_initcall+0x7c/0x1c0) [<c000973c>] (do_one_initcall) from [<c04b9ecc>] (kernel_init_freeable+0x168/0x1ac) [<c04b9ecc>] (kernel_init_freeable) from [<c03b2228>] (kernel_init+0x8/0xf4) [<c03b2228>] (kernel_init) from [<c00082c0>] (ret_from_fork+0x14/0x34) Exception stack(0xc441dfb0 to 0xc441dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 Code: e12fff1e e92d4010 e590303c e1a02001 (e5933000) ---[ end trace c914d6030eaa95c8 ]--- Fixes: b809d192eb ("rtc: ep93xx: stop setting platform_data") Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20201201095507.10317-1-nikita.shubin@maquefel.me Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-12-30 11:51:47 +01:00
..
accessibility	…
acpi	ACPI: PNP: compare the string length in the matching_id()	2020-12-30 11:51:32 +01:00
amba	…
android	binder: add flag to clear buffer on txn complete	2020-12-30 11:51:35 +01:00
ata	ata: sata_nv: Fix retrieving of active qcs	2020-11-05 11:43:12 +01:00
atm	atm: nicstar: Unmap DMA on send error	2020-11-24 13:28:55 +01:00
auxdisplay	…
base	PM: runtime: Resume the device earlier in __device_release_driver()	2020-11-10 12:37:34 +01:00
bcma	…
block	xen/xenbus: Add 'will_handle' callback support in xenbus_watch_path()	2020-12-30 11:51:46 +01:00
bluetooth	Bluetooth: btmtksdio: Add the missed release_firmware() in mtk_setup_firmware()	2020-12-30 11:51:20 +01:00
bus	bus: fsl-mc: fix error return code in fsl_mc_object_allocate()	2020-12-30 11:51:23 +01:00
cdrom	…
char	virtio: virtio_console: fix DMA memory allocation for rproc serial	2020-11-18 19:20:29 +01:00
clk	clk: tegra: Do not return 0 on failure	2020-12-30 11:51:46 +01:00
clocksource	clocksource/drivers/arm_arch_timer: Correct fault programming of CNTKCTL_EL1.EVNTI	2020-12-30 11:51:19 +01:00
connector	…
counter	…
cpufreq	cpufreq: scpi: Add missing MODULE_ALIAS	2020-12-30 11:51:20 +01:00
cpuidle	cpuidle: Fixup IRQ state	2020-09-09 19:12:21 +02:00
crypto	crypto: atmel-i2c - select CONFIG_BITREVERSE	2020-12-30 11:51:24 +01:00
dax	device-dax/core: Fix memory leak when rmmod dax.ko	2020-12-30 11:51:46 +01:00
dca	…
devfreq	PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out	2020-10-01 13:17:14 +02:00
dio	…
dma	dmaengine: mv_xor_v2: Fix error return code in mv_xor_v2_probe()	2020-12-30 11:51:12 +01:00
dma-buf	dma-buf/dma-resv: Respect num_fences when initializing the shared fence list.	2020-12-30 11:51:46 +01:00
edac	EDAC/amd64: Fix PCI component registration	2020-12-30 11:51:36 +01:00
eisa	…
extcon	extcon: max77693: Fix modalias string	2020-12-30 11:51:24 +01:00
firewire	…
firmware	efi: EFI_EARLYCON should depend on EFI	2020-12-02 08:49:53 +01:00
fpga	fpga: dfl: fix bug in port reset handshake	2020-07-29 10:18:31 +02:00
fsi	…
gnss	…
gpio	gpio: eic-sprd: break loop when getting NULL device resource	2020-12-30 11:50:55 +01:00
gpu	drm/i915: Fix mismatch between misplaced vma check and vma insert	2020-12-30 11:51:41 +01:00
greybus	…
hid	HID: i2c-hid: add Vero K147 to descriptor override	2020-12-30 11:51:00 +01:00
hsi	HSI: omap_ssi: Don't jump to free ID in ssi_add_controller()	2020-12-30 11:51:13 +01:00
hv	Drivers: hv: vmbus: Allow cleanup of VMBUS_CONNECT_CPU if disconnected	2020-11-24 13:29:23 +01:00
hwmon	hwmon: (ina3221) Fix PM usage counter unbalance in ina3221_write_enable	2020-12-30 11:51:17 +01:00
hwspinlock	…
hwtracing	coresight: etb10: Fix possible NULL ptr dereference in etb_enable_perf()	2020-12-30 11:50:59 +01:00
i2c	Revert "i2c: i2c-qcom-geni: Fix DMA transfer race"	2020-12-30 11:51:01 +01:00
i3c	i3c: master: Fix error return in cdns_i3c_master_probe()	2020-10-29 09:57:51 +01:00
ide	…
idle	…
iio	iio:adc:ti-ads124s08: Fix alignment and data leak issues.	2020-12-30 11:51:45 +01:00
infiniband	RDMA/cma: Don't overwrite sgid_attr after device is released	2020-12-30 11:51:26 +01:00
input	Input: cyapa_gen6 - fix out-of-bounds stack access	2020-12-30 11:51:32 +01:00
interconnect	interconnect: qcom: qcs404: Remove GPU and display RPM IDs	2020-12-16 10:56:56 +01:00
iommu	iommu/amd: Set DTE[IntTabLen] to represent 512 IRTEs	2020-12-11 13:23:31 +01:00
ipack	…
irqchip	irqchip/alpine-msi: Fix freeing of interrupts on allocation error path	2020-12-30 11:51:25 +01:00
isdn	…
leds	leds: bcm6328, bcm6358: use devres LED registering function	2020-11-05 11:43:24 +01:00
lightnvm	lightnvm: fix out-of-bounds write to array devices->info[]	2020-10-29 09:58:00 +01:00
macintosh	macintosh/via-macii: Access autopoll_devs when inside lock	2020-08-19 08:16:15 +02:00
mailbox	mailbox: avoid timer start from callback	2020-10-29 09:57:53 +01:00
mcb	…
md	md/cluster: fix deadlock when node is doing resync job	2020-12-30 11:51:45 +01:00
media	media: ipu3-cio2: Make the field on subdev format V4L2_FIELD_NONE	2020-12-30 11:51:31 +01:00
memory	memory: emif: Remove bogus debugfs error handling	2020-11-05 11:43:21 +01:00
memstick	memstick: r592: Fix error return in r592_probe()	2020-12-30 11:51:18 +01:00
message	scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove()	2020-11-05 11:43:25 +01:00
mfd	mfd: sprd: Add wakeup capability for PMIC IRQ	2020-11-18 19:20:26 +01:00
misc	habanalabs: put devices before driver removal	2020-12-30 11:50:56 +01:00
mmc	mmc: pxamci: Fix error return code in pxamci_probe	2020-12-30 11:51:11 +01:00
mtd	mtd: rawnand: meson: fix meson_nfc_dma_buffer_release() arguments	2020-12-30 11:51:43 +01:00
mux	…
net	xen/xenbus: Add 'will_handle' callback support in xenbus_watch_path()	2020-12-30 11:51:46 +01:00
nfc	nfc: s3fwrn5: Release the nfc firmware	2020-12-30 11:51:26 +01:00
ntb	NTB: hw: amd: fix an issue about leak system resources	2020-10-29 09:58:00 +01:00
nubus	…
nvdimm	libnvdimm/namespace: Fix reaping of invalidated block-window-namespace labels	2020-12-30 11:51:47 +01:00
nvme	nvme: free sq/cq dbbuf pointers when dbbuf set fails	2020-12-02 08:49:48 +01:00
nvmem	nvmem: core: fix possibly memleak when use nvmem_cell_info_to_nvmem_cell()	2020-10-29 09:57:42 +01:00
of	of/address: Fix of_node memory leak in of_dma_is_coherent	2020-11-18 19:20:28 +01:00
opp	opp: Reduce the size of critical section in _opp_table_kref_release()	2020-11-18 19:20:21 +01:00
oprofile	…
parisc	parisc: mask out enable and reserved bits from sba imask	2020-08-19 08:16:26 +02:00
parport	…
pci	PCI: Fix pci_slot_release() NULL pointer dereference	2020-12-30 11:51:47 +01:00
pcmcia	…
perf	drivers/perf: thunderx2_pmu: Fix memory resource error handling	2020-10-29 09:57:30 +01:00
phy	phy: renesas: rcar-gen3-usb2: disable runtime pm in case of failure	2020-12-30 11:51:19 +01:00
pinctrl	pinctrl: sunxi: Always call chained_irq_{enter, exit} in sunxi_pinctrl_irq_handler	2020-12-30 11:51:45 +01:00
platform	platform/x86: intel-vbtn: Allow switch events on Acer Switch Alpha 12	2020-12-30 11:51:47 +01:00
pnp	…
power	power: supply: bq24190_charger: fix reference leak	2020-12-30 11:51:14 +01:00
powercap	powercap: restrict energy meter to root access	2020-11-10 21:13:20 +01:00
pps	…
ps3	powerpc/ps3: use dma_mapping_error()	2020-12-30 11:51:26 +01:00
ptp	…
pwm	pwm: lp3943: Dynamically allocate PWM chip base	2020-12-30 11:51:28 +01:00
rapidio	rapidio: fix the missed put_device() for rio_mport_add_riodev	2020-10-29 09:57:53 +01:00
ras	…
regulator	regulator: axp20x: Fix DLDO2 voltage control register mask for AXP22x	2020-12-30 11:51:47 +01:00
remoteproc	remoteproc: qcom: Fix potential NULL dereference in adsp_init_mmio()	2020-12-30 11:51:24 +01:00
reset	…
rpmsg	rpmsg: glink: Use complete_all for open states	2020-11-05 11:43:20 +01:00
rtc	rtc: ep93xx: Fix NULL pointer dereference in ep93xx_rtc_read_time	2020-12-30 11:51:47 +01:00
s390	s390/dasd: fix list corruption of lcu list	2020-12-30 11:51:34 +01:00
sbus	…
scsi	scsi: lpfc: Re-fix use after free in lpfc_rq_buf_free()	2020-12-30 11:51:44 +01:00
sfi	…
sh	…
siox	…
slimbus	slimbus: qcom-ngd-ctrl: Avoid sending power requests without QMI	2020-12-30 11:51:13 +01:00
soc	soc: qcom: smp2p: Safely acquire spinlock without IRQs	2020-12-30 11:51:43 +01:00
soundwire	soundwire: bus: disable pm_runtime in sdw_slave_delete	2020-10-01 13:17:36 +02:00
spi	spi: atmel-quadspi: Fix AHB memory accesses	2020-12-30 11:51:43 +01:00
spmi	…
ssb	…
staging	staging: comedi: mf6x4: Fix AI end-of-conversion detection	2020-12-30 11:51:35 +01:00
target	scsi: target: iscsi: Fix cmd abort fabric stop race	2020-12-02 08:49:49 +01:00
tc	…
tee	optee: add writeback to valid memory type	2020-12-02 08:49:53 +01:00
thermal	thermal: rcar_thermal: Handle probe error gracefully	2020-10-01 13:17:44 +02:00
thunderbolt	thunderbolt: Fix use-after-free in remove_unplugged_switch()	2020-12-11 13:23:29 +01:00
tty	serial_core: Check for port state when tty is in error state	2020-12-30 11:51:00 +01:00
uio	uio: Fix use-after-free in uio_unregister_device()	2020-11-18 19:20:29 +01:00
usb	USB: serial: keyspan_pda: fix write unthrottling	2020-12-30 11:51:37 +01:00
vfio	vfio/pci/nvlink2: Do not attempt NPU2 setup on POWER8NVL NPU	2020-12-30 11:51:30 +01:00
vhost	vhost scsi: fix cmd completion race	2020-12-02 08:49:48 +01:00
video	video: fbdev: atmel_lcdfb: fix return error code in atmel_lcdfb_of_init()	2020-12-30 11:51:08 +01:00
virt	drivers/virt/fsl_hypervisor: Fix error handling path	2020-10-29 09:57:38 +01:00
virtio	virtio_ring: Fix two use after free bugs	2020-12-30 11:51:29 +01:00
visorbus	…
vlynq	…
vme	…
w1	w1: mxc_w1: Fix timeout resolution problem leading to bus error	2020-11-05 11:43:25 +01:00
watchdog	watchdog: coh901327: add COMMON_CLK dependency	2020-12-30 11:51:28 +01:00
xen	xenbus/xenbus_backend: Disallow pending watch messages	2020-12-30 11:51:47 +01:00
zorro	…
Kconfig	…
Makefile	…