diff options
| author | Li Chen <chenl311@chinatelecom.cn> | 2025-06-20 21:13:07 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-20 18:30:58 +0200 |
| commit | e67d015b3732a349763978dbf40b88ca562d3390 (patch) | |
| tree | 615874e127041229fc66b1a81c02ff43b1aa92f5 | |
| parent | 25ae311e322dd7eb4a1a0978426620aae81700e1 (diff) | |
ACPI: Return -ENODEV from acpi_parse_spcr() when SPCR support is disabled
commit b9f58d3572a8e1ef707b941eae58ec4014b9269d upstream.
If CONFIG_ACPI_SPCR_TABLE is disabled, acpi_parse_spcr()
currently returns 0, which may incorrectly suggest that
SPCR parsing was successful. This patch changes the behavior
to return -ENODEV to clearly indicate that SPCR support
is not available.
This prepares the codebase for future changes that depend
on acpi_parse_spcr() failure detection, such as suppressing
misleading console messages.
Signed-off-by: Li Chen <chenl311@chinatelecom.cn>
Acked-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/20250620131309.126555-2-me@linux.beauty
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | include/linux/acpi.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index f826bb59556a..0e8d684ad9f4 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -1472,7 +1472,7 @@ int acpi_parse_spcr(bool enable_earlycon, bool enable_console); #else static inline int acpi_parse_spcr(bool enable_earlycon, bool enable_console) { - return 0; + return -ENODEV; } #endif |