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[PW_SID:1088823] riscv: cpuinfo: Fix NULL dereference and inconsistent error code#1858

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[PW_SID:1088823] riscv: cpuinfo: Fix NULL dereference and inconsistent error code#1858
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@linux-riscv-bot linux-riscv-bot commented May 2, 2026

PR for series 1088823 applied to workflow__riscv__fixes

Name: riscv: cpuinfo: Fix NULL dereference and inconsistent error code
URL: https://patchwork.kernel.org/project/linux-riscv/list/?series=1088823
Version: 1

@mohamedayman237
riscv: cpuinfo: Fix NULL dereference and inconsistent error code
eb812a4 
Fix a potential NULL pointer dereference in c_show() by ensuring
the device tree node returned by of_get_cpu_node() is checked before use.

Also replace a non-standard return value (-1) in
riscv_of_parent_hartid() with -ENODEV to follow Linux kernel
conventions for "not found" error returns.

Both issues improve robustness and consistency with existing RISC-V CPU info handling code.

v2: Add missing Signed-off-by

Signed-off-by: Mohamed Ayman <mohamedaymanworkspace@gmail.com>
Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>
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linux-riscv-bot commented May 2, 2026

Patch 1: "riscv: cpuinfo: Fix NULL dereference and inconsistent error code"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 140.41 seconds
Result: PASS

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linux-riscv-bot commented May 2, 2026

Patch 1: "riscv: cpuinfo: Fix NULL dereference and inconsistent error code"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1142.85 seconds
Result: PASS

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linux-riscv-bot commented May 2, 2026

Patch 1: "riscv: cpuinfo: Fix NULL dereference and inconsistent error code"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1700.17 seconds
Result: PASS

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linux-riscv-bot commented May 2, 2026

Patch 1: "riscv: cpuinfo: Fix NULL dereference and inconsistent error code"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 25.72 seconds
Result: PASS

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linux-riscv-bot commented May 2, 2026

Patch 1: "riscv: cpuinfo: Fix NULL dereference and inconsistent error code"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 27.27 seconds
Result: PASS

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linux-riscv-bot commented May 2, 2026

Patch 1: "riscv: cpuinfo: Fix NULL dereference and inconsistent error code"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 1.65 seconds
Result: WARNING
Output:

CHECK: Alignment should match open parenthesis
#43: FILE: arch/riscv/kernel/cpu.c:353:
+			if (!of_property_read_string(node, "compatible", &compat) &&
+				strcmp(compat, "riscv"))

total: 0 errors, 0 warnings, 1 checks, 26 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit eb812a497e7f ("riscv: cpuinfo: Fix NULL dereference and inconsistent error code") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 0 warnings, 1 checks, 26 lines checked
CHECK: Alignment should match open parenthesis

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linux-riscv-bot commented May 2, 2026

Patch 1: "riscv: cpuinfo: Fix NULL dereference and inconsistent error code"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 86.44 seconds
Result: PASS

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linux-riscv-bot commented May 2, 2026

Patch 1: "riscv: cpuinfo: Fix NULL dereference and inconsistent error code"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.24 seconds
Result: PASS

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linux-riscv-bot commented May 2, 2026

Patch 1: "riscv: cpuinfo: Fix NULL dereference and inconsistent error code"
kdoc
Desc: Detects for kdoc errors
Duration: 0.89 seconds
Result: PASS

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linux-riscv-bot commented May 2, 2026

Patch 1: "riscv: cpuinfo: Fix NULL dereference and inconsistent error code"
module-param
Desc: Detect module_param changes
Duration: 0.26 seconds
Result: PASS

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linux-riscv-bot commented May 2, 2026

Patch 1: "riscv: cpuinfo: Fix NULL dereference and inconsistent error code"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.25 seconds
Result: PASS

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linux-riscv-bot commented May 2, 2026

Patch 1: "riscv: cpuinfo: Fix NULL dereference and inconsistent error code"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.30 seconds
Result: PASS

@linux-riscv-bot linux-riscv-bot deleted the pw1088823 branch May 7, 2026 20:53
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@linux-riscv-bot @mohamedayman237