From f1a70bac90cafd1b20a747b6dcc49d3a79050626 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Mon, 5 Dec 2022 20:08:00 +0100 Subject: [PATCH] ACPI: processor: perflib: Adjust acpi_processor_notify_smm() return value Avoid returning a confusing error code from acpi_processor_notify_smm() if it is called for the second time in the case when SMM notification regarding P-state control is not supported. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/processor_perflib.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 7b6fa1b27afb7..970f04a958cd2 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -475,10 +475,12 @@ int acpi_processor_notify_smm(struct module *calling_module) result = acpi_processor_pstate_control(); if (result <= 0) { - if (!result) + if (result) { + is_done = result; + } else { pr_debug("No SMI port or pstate_control\n"); - - is_done = -EIO; + is_done = 1; + } goto out_put; } -- 2.30.2