[PATCH] ACPI: unsigned cannot be less than 0.

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include/linux/pci-acpi.h:74:
typedef u32                 acpi_status;
------------------------------>8-------------8<---------------------------------
result is unsigned, so an error returned by acpi_bus_register_driver() will not
be noticed.

Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
---
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 8a8b377..2f269e1 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -708,7 +708,7 @@ static int __init acpi_wmi_add(struct acpi_device *device)
 
 static int __init acpi_wmi_init(void)
 {
-	acpi_status result;
+	int result;
 
 	INIT_LIST_HEAD(&wmi_blocks.list);
 
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