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Nanyong Sun f03dca0c9e net: encx24j600: check error in devm_regmap_init_encx24j600 
devm_regmap_init may return error which caused by like out of memory,
this will results in null pointer dereference later when reading
or writing register:

general protection fault in encx24j600_spi_probe
KASAN: null-ptr-deref in range [0x0000000000000090-0x0000000000000097]
CPU: 0 PID: 286 Comm: spi-encx24j600- Not tainted 5.15.0-rc2-00142-g9978db750e31-dirty #11 9c53a778c1306b1b02359f3c2bbedc0222cba652
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
RIP: 0010:regcache_cache_bypass drivers/base/regmap/regcache.c:540
Code: 54 41 89 f4 55 53 48 89 fb 48 83 ec 08 e8 26 94 a8 fe 48 8d bb a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 4a 03 00 00 4c 8d ab b0 00 00 00 48 8b ab a0 00
RSP: 0018:ffffc900010476b8 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: fffffffffffffff4 RCX: 0000000000000000
RDX: 0000000000000012 RSI: ffff888002de0000 RDI: 0000000000000094
RBP: ffff888013c9a000 R08: 0000000000000000 R09: fffffbfff3f9cc6a
R10: ffffc900010476e8 R11: fffffbfff3f9cc69 R12: 0000000000000001
R13: 000000000000000a R14: ffff888013c9af54 R15: ffff888013c9ad08
FS:  00007ffa984ab580(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a6384136c8 CR3: 000000003bbe6003 CR4: 0000000000770ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 encx24j600_spi_probe drivers/net/ethernet/microchip/encx24j600.c:459
 spi_probe drivers/spi/spi.c:397
 really_probe drivers/base/dd.c:517
 __driver_probe_device drivers/base/dd.c:751
 driver_probe_device drivers/base/dd.c:782
 __device_attach_driver drivers/base/dd.c:899
 bus_for_each_drv drivers/base/bus.c:427
 __device_attach drivers/base/dd.c:971
 bus_probe_device drivers/base/bus.c:487
 device_add drivers/base/core.c:3364
 __spi_add_device drivers/spi/spi.c:599
 spi_add_device drivers/spi/spi.c:641
 spi_new_device drivers/spi/spi.c:717
 new_device_store+0x18c/0x1f1 [spi_stub 4e02719357f1ff33f5a43d00630982840568e85e]
 dev_attr_store drivers/base/core.c:2074
 sysfs_kf_write fs/sysfs/file.c:139
 kernfs_fop_write_iter fs/kernfs/file.c:300
 new_sync_write fs/read_write.c:508 (discriminator 4)
 vfs_write fs/read_write.c:594
 ksys_write fs/read_write.c:648
 do_syscall_64 arch/x86/entry/common.c:50
 entry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:113

Add error check in devm_regmap_init_encx24j600 to avoid this situation.

Fixes: 04fbfce7a2 ("net: Microchip encx24j600 driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Nanyong Sun <sunnanyong@huawei.com>
Link: https://lore.kernel.org/r/20211012125901.3623144-1-sunnanyong@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-13 15:25:25 -07:00
..
accessibility
acpi ACPI: NFIT: Use fallback node id when numa info in NFIT table is incorrect 2021-09-27 11:40:43 -07:00
amba
android binder: make sure fd closes complete 2021-09-14 09:02:13 +02:00
ata libata: Add ATA_HORKAGE_NO_NCQ_ON_ATI for Samsung 860 and 870 SSD. 2021-09-03 08:06:02 -06:00
atm
auxdisplay
base Driver core fixes for 5.15-rc4 2021-10-03 11:10:09 -07:00
bcma Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
block nbd: use shifts rather than multiplies 2021-09-29 20:31:41 -06:00
bluetooth Bluetooth: btusb: Remove WAKEUP_DISABLE and add WAKEUP_AUTOSUSPEND for Realtek devices 2021-08-19 17:08:31 +02:00
bus bus: ti-sysc: Use CLKDM_NOAUTO for dra7 dcan1 for errata i893 2021-10-06 08:01:13 +03:00
cdrom
char IPMI: A couple of very minor fixes for style and rate limiting 2021-09-12 11:44:58 -07:00
clk One patch to fix an unused variable warning in a Qualcomm clk driver. 2021-09-11 10:05:56 -07:00
clocksource - converted Pistachio platform to use MIPS generic kernel 2021-09-03 11:11:54 -07:00
comedi comedi: Fix memory leak in compat_insnlist() 2021-09-21 17:53:54 +02:00
connector
counter
cpufreq Power management fixes for 5.15-rc2 2021-09-17 12:05:04 -07:00
cpuidle - Core Frameworks 2021-09-07 12:38:59 -07:00
crypto crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd() 2021-09-24 15:58:41 +08:00
cxl cxl for v5.15 2021-09-09 11:48:27 -07:00
dax libnvdimm for v5.15 2021-09-09 11:39:57 -07:00
dca
devfreq devfreq: use HZ macros 2021-09-08 11:50:26 -07:00
dio
dma dmaengine updates for v5.15-rc1 2021-09-09 11:07:47 -07:00
dma-buf dma-buf: DMABUF_SYSFS_STATS should depend on DMA_SHARED_BUFFER 2021-09-07 12:42:21 +05:30
edac EDAC/dmc520: Assign the proper type to dimm->edac_mode 2021-09-16 11:00:12 +02:00
eisa
extcon
firewire FireWire (IEEE 1394) subsystem updates: 2021-09-11 09:47:33 -07:00
firmware SCMI fixes for v5.15 2021-10-07 21:14:04 +02:00
fpga fpga: dfl: Avoid reads to AFU CSRs during enumeration 2021-09-16 15:20:55 -07:00
fsi
gnss
gpio gpio fixes for v5.15-rc4 2021-09-30 12:11:35 -07:00
gpu drm/i915: fix blank screen booting crashes 2021-10-02 09:39:15 -07:00
greybus
hid HID: amd_sfh: Fix potential NULL pointer dereference 2021-09-27 10:00:43 +02:00
hsi
hv hyperv-fixes for 5.15-rc2 2021-09-15 17:18:56 -07:00
hwmon hwmon: (w83793) Fix NULL pointer dereference by removing unnecessary structure field 2021-10-02 05:14:11 -07:00
hwspinlock
hwtracing coresight: syscfg: Fix compiler warning 2021-09-14 09:03:16 +02:00
i2c platform-drivers-x86 for v5.15-1 2021-09-02 13:49:39 -07:00
i3c
idle
iio Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
infiniband RDMA/hns: Add the check of the CQE size of the user space 2021-09-27 14:49:49 -03:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2021-09-11 09:08:28 -07:00
interconnect interconnect: qcom: sdm660: Add missing a2noc qos clocks 2021-09-13 15:49:55 +03:00
iommu iommu/dart: Clear sid2group entry when a group is freed 2021-09-28 11:47:24 +02:00
ipack ipack: ipoctal: fix module reference leak 2021-09-27 17:38:49 +02:00
irqchip irqchip/gic: Work around broken Renesas integration 2021-09-22 14:44:25 +01:00
isdn isdn: mISDN: Fix sleeping function called from invalid context 2021-10-09 13:42:51 +01:00
leds leds: pca955x: Switch to i2c probe_new 2021-08-20 11:00:08 +02:00
macintosh memblock: introduce saner 'memblock_free_ptr()' interface 2021-09-14 13:23:22 -07:00
mailbox mailbox: cmdq: add multi-gce clocks support for mt8195 2021-08-31 22:57:45 -05:00
mcb mcb: fix error handling in mcb_alloc_bus() 2021-09-14 11:22:26 +02:00
md md: fix a lock order reversal in md_alloc 2021-09-22 08:45:58 -07:00
media media fixes for v5.15-rc4 2021-09-27 13:05:12 -07:00
memory
memstick Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
message
mfd - Core Frameworks 2021-09-07 12:38:59 -07:00
misc misc: bcm-vk: fix tty registration race 2021-09-21 16:17:15 +02:00
mmc mmc: renesas_sdhi: fix regression with hard reset on old SDHIs 2021-09-06 18:10:49 +02:00
most
mtd Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
mux
net net: encx24j600: check error in devm_regmap_init_encx24j600 2021-10-13 15:25:25 -07:00
nfc nfc: st-nci: Add SPI ID matching DT compatible 2021-09-23 12:53:06 +01:00
ntb Bug fixes and clean-ups for Linux v5.15 2021-09-07 13:05:02 -07:00
nubus
nvdimm nvdimm/pmem: fix creating the dax group 2021-09-27 11:40:43 -07:00
nvme nvme: add command id quirk for apple controllers 2021-09-27 10:02:07 -06:00
nvmem nvmem: NVMEM_NINTENDO_OTP should depend on WII 2021-09-21 17:38:37 +02:00
of of: restricted dma: Fix condition for rmem init 2021-09-17 15:58:09 -05:00
opp Merge branches 'pm-pci', 'pm-sleep', 'pm-domains' and 'powercap' 2021-08-30 19:25:42 +02:00
parisc parisc: Move pci_dev_is_behind_card_dino to where it is used 2021-09-09 12:44:31 +02:00
parport parisc architecture updates for kernel 5.15: 2021-09-02 13:16:00 -07:00
pci hyperv-fixes for 5.15 2021-10-07 09:44:48 -07:00
pcmcia
perf KVM: arm64: Fix PMU probe ordering 2021-09-20 12:43:34 +01:00
phy Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
pinctrl pinctrl: qcom: sc7280: Add PM suspend callbacks 2021-09-23 23:09:14 +02:00
platform platform/x86: gigabyte-wmi: add support for B550I Aorus Pro AX 2021-09-21 15:49:23 +02:00
pnp
power power supply and reset changes for the v5.15 series 2021-08-30 11:47:32 -07:00
powercap powercap: Add Power Limit4 support for Alder Lake SoC 2021-08-25 20:12:16 +02:00
pps
ps3
ptp Networking fixes for 5.15-rc5, including fixes from xfrm, bpf, 2021-10-07 09:50:31 -07:00
pwm pwm: mtk-disp: Implement atomic API .get_state() 2021-09-02 22:27:46 +02:00
rapidio
ras
regulator regulator: max14577: Revert "regulator: max14577: Add proper module aliases strings" 2021-09-17 13:16:38 +01:00
remoteproc
reset ARM: SoC drivers for 5.15 2021-09-01 15:25:28 -07:00
rpmsg
rtc rtc: cmos: Disable irq around direct invocation of cmos_interrupt() 2021-09-14 10:20:19 +02:00
s390 s390 updates for 5.15-rc4 2021-10-01 14:45:23 -07:00
sbus
scsi scsi: csiostor: Add module softdep on cxgb4 2021-09-28 23:26:42 -04:00
sh
siox
slimbus Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
soc Fixes for omaps for v5.15 2021-10-07 21:13:57 +02:00
soundwire sound updates for 5.15-rc1 2021-09-01 10:29:29 -07:00
spi spi: Fix modalias issues 2021-09-22 11:58:24 -07:00
spmi
ssb
staging media fixes for v5.15-rc5 2021-10-04 09:53:40 -07:00
target scsi: target: Fix spelling mistake "CONFLIFT" -> "CONFLICT" 2021-09-22 00:17:29 -04:00
tc
tee tee/optee/shm_pool: fix application of sizeof to pointer 2021-09-14 07:54:56 +02:00
thermal thermal/drivers/tsens: Fix wrong check for tzd in irq handlers 2021-09-21 15:17:11 +02:00
thunderbolt thunderbolt: test: split up test cases in tb_test_credit_alloc_all 2021-09-06 12:27:03 -07:00
tty tty: unexport tty_ldisc_release 2021-09-14 11:18:47 +02:00
uio
usb ARM: SoC fixes for v5.15 2021-10-07 14:01:29 -07:00
vdpa vdpa/mlx5: Avoid executing set_vq_ready() if device is reset 2021-09-14 18:10:43 -04:00
vfio vfio/pci: add missing identifier name in argument of function prototype 2021-09-23 14:12:36 -06:00
vhost virtio,vdpa: fixes 2021-09-28 07:27:29 -07:00
video tgafb: clarify dependencies 2021-09-18 11:15:01 -07:00
virt
virtio virtio: don't fail on !of_device_is_compatible 2021-09-14 18:09:57 -04:00
visorbus
vlynq
vme
w1
watchdog watchdog/sb_watchdog: fix compilation problem due to COMPILE_TEST 2021-09-27 11:57:19 -07:00
xen xen: branch for v5.15-rc3 2021-09-25 15:37:31 -07:00
zorro
Kconfig
Makefile