linux-kernel - [PATCH v2 2/4] acpi: cppc: Don't return on CPPC probe failure

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Date:   Thu,  1 Sep 2016 13:37:09 -0700
From:   Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:     rjw@...ysocki.net, tglx@...utronix.de, mingo@...hat.com,
        bp@...e.de, peterz@...radead.org
Cc:     x86@...nel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
        tim.c.chen@...ux.intel.com, alexey.klimov@....com,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: [PATCH v2 2/4] acpi: cppc: Don't return on CPPC probe failure

It is still possible to continue even CPPC data is invalid or missing.

Suggested-by: Alexey Klimov <alexey.klimov@....com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
---
 drivers/acpi/processor_driver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index f5c92be..8f8552a 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -246,7 +246,7 @@ static int __acpi_processor_start(struct acpi_device *device)
 
 	result = acpi_cppc_processor_probe(pr);
 	if (result && !IS_ENABLED(CONFIG_ACPI_CPU_FREQ_PSS))
-		return -ENODEV;
+		dev_warn(&device->dev, "CPPC data invalid or not present\n");
 
 	if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver)
 		acpi_processor_power_init(pr);
-- 
2.7.4