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Binbin Zhou 6010a9fc14 drivers/thermal/loongson2_thermal: Fix incorrect PTR_ERR() judgment [ Upstream commit `15ef92e9c4` ] PTR_ERR() returns -ENODEV when thermal-zones are undefined, and we need -ENODEV as the right value for comparison. Otherwise, tz->type is NULL when thermal-zones is undefined, resulting in the following error: [ 12.290030] CPU 1 Unable to handle kernel paging request at virtual address fffffffffffffff1, era == 900000000355f410, ra == 90000000031579b8 [ 12.302877] Oops[#1]: [ 12.305190] CPU: 1 PID: 181 Comm: systemd-udevd Not tainted 6.6.0-rc7+ #5385 [ 12.312304] pc 900000000355f410 ra 90000000031579b8 tp 90000001069e8000 sp 90000001069eba10 [ 12.320739] a0 0000000000000000 a1 fffffffffffffff1 a2 0000000000000014 a3 0000000000000001 [ 12.329173] a4 90000001069eb990 a5 0000000000000001 a6 0000000000001001 a7 900000010003431c [ 12.337606] t0 fffffffffffffff1 t1 54567fd5da9b4fd4 t2 900000010614ec40 t3 00000000000dc901 [ 12.346041] t4 0000000000000000 t5 0000000000000004 t6 900000010614ee20 t7 900000000d00b790 [ 12.354472] t8 00000000000dc901 u0 54567fd5da9b4fd4 s9 900000000402ae10 s0 900000010614ec40 [ 12.362916] s1 90000000039fced0 s2 ffffffffffffffed s3 ffffffffffffffed s4 9000000003acc000 [ 12.362931] s5 0000000000000004 s6 fffffffffffff000 s7 0000000000000490 s8 90000001028b2ec8 [ 12.362938] ra: 90000000031579b8 thermal_add_hwmon_sysfs+0x258/0x300 [ 12.386411] ERA: 900000000355f410 strscpy+0xf0/0x160 [ 12.391626] CRMD: 000000b0 (PLV0 -IE -DA +PG DACF=CC DACM=CC -WE) [ 12.397898] PRMD: 00000004 (PPLV0 +PIE -PWE) [ 12.403678] EUEN: 00000000 (-FPE -SXE -ASXE -BTE) [ 12.409859] ECFG: 00071c1c (LIE=2-4,10-12 VS=7) [ 12.415882] ESTAT: 00010000 [PIL] (IS= ECode=1 EsubCode=0) [ 12.415907] BADV: fffffffffffffff1 [ 12.415911] PRID: 0014a000 (Loongson-64bit, Loongson-2K1000) [ 12.415917] Modules linked in: loongson2_thermal(+) vfat fat uio_pdrv_genirq uio fuse zram zsmalloc [ 12.415950] Process systemd-udevd (pid: 181, threadinfo=00000000358b9718, task=00000000ace72fe3) [ 12.415961] Stack : 0000000000000dc0 54567fd5da9b4fd4 900000000402ae10 9000000002df9358 [ 12.415982] ffffffffffffffed 0000000000000004 9000000107a10aa8 90000001002a3410 [ 12.415999] ffffffffffffffed ffffffffffffffed 9000000107a11268 9000000003157ab0 [ 12.416016] 9000000107a10aa8 ffffff80020fc0c8 90000001002a3410 ffffffffffffffed [ 12.416032] 0000000000000024 ffffff80020cc1e8 900000000402b2a0 9000000003acc000 [ 12.416048] 90000001002a3410 0000000000000000 ffffff80020f4030 90000001002a3410 [ 12.416065] 0000000000000000 9000000002df6808 90000001002a3410 0000000000000000 [ 12.416081] ffffff80020f4030 0000000000000000 90000001002a3410 9000000002df2ba8 [ 12.416097] 00000000000000b4 90000001002a34f4 90000001002a3410 0000000000000002 [ 12.416114] ffffff80020f4030 fffffffffffffff0 90000001002a3410 9000000002df2f30 [ 12.416131] ... [ 12.416138] Call Trace: [ 12.416142] [<900000000355f410>] strscpy+0xf0/0x160 [ 12.416167] [<90000000031579b8>] thermal_add_hwmon_sysfs+0x258/0x300 [ 12.416183] [<9000000003157ab0>] devm_thermal_add_hwmon_sysfs+0x50/0xe0 [ 12.416200] [<ffffff80020cc1e8>] loongson2_thermal_probe+0x128/0x200 [loongson2_thermal] [ 12.416232] [<9000000002df6808>] platform_probe+0x68/0x140 [ 12.416249] [<9000000002df2ba8>] really_probe+0xc8/0x3c0 [ 12.416269] [<9000000002df2f30>] __driver_probe_device+0x90/0x180 [ 12.416286] [<9000000002df3058>] driver_probe_device+0x38/0x160 [ 12.416302] [<9000000002df33a8>] __driver_attach+0xa8/0x200 [ 12.416314] [<9000000002deffec>] bus_for_each_dev+0x8c/0x120 [ 12.416330] [<9000000002df198c>] bus_add_driver+0x10c/0x2a0 [ 12.416346] [<9000000002df46b4>] driver_register+0x74/0x160 [ 12.416358] [<90000000022201a4>] do_one_initcall+0x84/0x220 [ 12.416372] [<90000000022f3ab8>] do_init_module+0x58/0x2c0 [ 12.416386] [<90000000022f6538>] init_module_from_file+0x98/0x100 [ 12.416399] [<90000000022f67f0>] sys_finit_module+0x230/0x3c0 [ 12.416412] [<900000000358f7c8>] do_syscall+0x88/0xc0 [ 12.416431] [<900000000222137c>] handle_syscall+0xbc/0x158 Fixes: `e7e3a7c357` ("thermal/drivers/loongson-2: Add thermal management support") Cc: Yinbo Zhu <zhuyinbo@loongson.cn> Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/343c14de98216636a47b43e8bfd47b70d0a8e068.1700817227.git.zhoubinbin@loongson.cn Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2024-01-25 15:44:40 -08:00
arch	perf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology()	2024-01-25 15:44:38 -08:00
block	block-6.7-2023-12-29	2023-12-29 11:41:40 -08:00
certs	This update includes the following changes:	2023-11-02 16:15:30 -10:00
crypto	This push fixes a regression in ahash and hides the Kconfig sub-options for the jitter RNG.	2023-11-09 17:04:58 -08:00
Documentation	docs: kernel_feat.py: fix potential command injection	2024-01-20 11:53:02 +01:00
drivers	drivers/thermal/loongson2_thermal: Fix incorrect PTR_ERR() judgment	2024-01-25 15:44:40 -08:00
fs	efivarfs: Free s_fs_info on unmount	2024-01-25 15:44:39 -08:00
include	Including fixes from wireless and netfilter.	2024-01-04 16:34:50 -08:00
init	As usual, lots of singleton and doubleton patches all over the tree and	2023-11-02 20:53:31 -10:00
io_uring	io_uring/cmd: fix breakage in SOCKET_URING_OP_SIOC* implementation	2023-12-14 16:52:13 -07:00
ipc	Many singleton patches against the MM code. The patch series which are	2023-11-02 19:38:47 -10:00
kernel	sched/fair: Update min_vruntime for reweight_entity() correctly	2024-01-25 15:44:38 -08:00
lib	kunit: debugfs: Handle errors from alloc_string_stream()	2024-01-25 15:44:40 -08:00
LICENSES	LICENSES: Add the copyleft-next-0.3.1 license	2022-11-08 15:44:01 +01:00
mm	mm/memory_hotplug: fix memmap_on_memory sysfs value retrieval	2024-01-20 11:53:02 +01:00
net	calipso: fix memory leak in netlbl_calipso_add_pass()	2024-01-25 15:44:39 -08:00
rust	Kbuild updates for v6.7	2023-11-04 08:07:19 -10:00
samples	Landlock updates for v6.7-rc1	2023-11-03 09:28:53 -10:00
scripts	scripts/decode_stacktrace.sh: optionally use LLVM utilities	2024-01-20 11:53:02 +01:00
security	KEYS: encrypted: Add check for strsep	2024-01-25 15:44:39 -08:00
sound	ALSA: hda: cs35l41: Support more HP models without _DSD	2024-01-20 11:53:00 +01:00
tools	selftests/powerpc: Fix error handling in FPU/VMX preemption tests	2024-01-25 15:44:38 -08:00
usr	arch: Remove Itanium (IA-64) architecture	2023-09-11 08:13:17 +00:00
virt	KVM/arm64 fixes for 6.7, part #2	2023-12-22 18:03:54 -05:00
.clang-format	iommu: Add for_each_group_device()	2023-05-23 08:15:51 +02:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.get_maintainer.ignore	get_maintainer: add Alan to .get_maintainer.ignore	2022-08-20 15:17:44 -07:00
.gitattributes	.gitattributes: set diff driver for Rust source code files	2023-05-31 17:48:25 +02:00
.gitignore	kbuild: rpm-pkg: generate kernel.spec in rpmbuild/SPECS/	2023-10-03 20:49:09 +09:00
.mailmap	12 hotfixes. 2 are cc:stable and the remainder either address post-6.7	2024-01-05 13:46:18 -08:00
.rustfmt.toml	rust: add `.rustfmt.toml`	2022-09-28 09:02:20 +02:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	12 hotfixes. 2 are cc:stable and the remainder either address post-6.7	2024-01-05 13:46:18 -08:00
Kbuild	Kbuild updates for v6.1	2022-10-10 12:00:45 -07:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	12 hotfixes. 2 are cc:stable and the remainder either address post-6.7	2024-01-05 13:46:18 -08:00
Makefile	Linux 6.7.1	2024-01-20 11:53:02 +01:00
README	Drop all 00-INDEX files from Documentation/	2018-09-09 15:08:58 -06:00

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.