1 files changed, 14 insertions, 24 deletions

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 0418febc5cf2..326ce7f1b0d9 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1458,38 +1458,28 @@ __setup("acpi_enforce_resources=", acpi_enforce_resources_setup);
 int acpi_check_resource_conflict(const struct resource *res)
 {
 	acpi_adr_space_type space_id;
-	acpi_size length;
-	u8 warn = 0;
-	int clash = 0;
 
 	if (acpi_enforce_resources == ENFORCE_RESOURCES_NO)
 		return 0;
-	if (!(res->flags & IORESOURCE_IO) && !(res->flags & IORESOURCE_MEM))
-		return 0;
 
 	if (res->flags & IORESOURCE_IO)
 		space_id = ACPI_ADR_SPACE_SYSTEM_IO;
-	else
+	else if (res->flags & IORESOURCE_MEM)
 		space_id = ACPI_ADR_SPACE_SYSTEM_MEMORY;
+	else
+		return 0;
+
+	if (!acpi_check_address_range(space_id, res->start, resource_size(res), 1))
+		return 0;
+
+	pr_info("Resource conflict; ACPI support missing from driver?\n");
+
+	if (acpi_enforce_resources == ENFORCE_RESOURCES_STRICT)
+		return -EBUSY;
+
+	if (acpi_enforce_resources == ENFORCE_RESOURCES_LAX)
+		pr_notice("Resource conflict: System may be unstable or behave erratically\n");
 
-	length = resource_size(res);
-	if (acpi_enforce_resources != ENFORCE_RESOURCES_NO)
-		warn = 1;
-	clash = acpi_check_address_range(space_id, res->start, length, warn);
-
-	if (clash) {
-		if (acpi_enforce_resources != ENFORCE_RESOURCES_NO) {
-			if (acpi_enforce_resources == ENFORCE_RESOURCES_LAX)
-				printk(KERN_NOTICE "ACPI: This conflict may"
-				       " cause random problems and system"
-				       " instability\n");
-			printk(KERN_INFO "ACPI: If an ACPI driver is available"
-			       " for this device, you should use it instead of"
-			       " the native driver\n");
-		}
-		if (acpi_enforce_resources == ENFORCE_RESOURCES_STRICT)
-			return -EBUSY;
-	}
 	return 0;
 }
 EXPORT_SYMBOL(acpi_check_resource_conflict);