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ACPI: Return -ENODEV from acpi_parse_spcr() when SPCR support is disabled

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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>
This commit is contained in:
Li Chen 2025-06-20 21:13:07 +08:00 committed by Catalin Marinas
parent 19272b37aa
commit b9f58d3572
1 changed files with 1 additions and 1 deletions
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2
include/linux/acpi.h
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@ -1503,7 +1503,7 @@ 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