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-rw-r--r--drivers/misc/thinkpad_acpi.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index a6c28558586..440145a0261 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -386,7 +386,7 @@ static u8 fan_control_initial_status;
static u8 fan_control_desired_level;
static int fan_watchdog_maxinterval;
-struct mutex fan_mutex;
+static struct mutex fan_mutex;
static acpi_handle fans_handle, gfan_handle, sfan_handle;