setup_res() doesn't actually get any resoure because it mistakenly
checks the return value of acpi_dev_filter_resource_type(), which
returns 0 on success, and 1 on failure. Fix it by taking the return
value of non-zero as failing to match the specified resource type.

Signed-off-by: Rui Wang <rui.y.w...@intel.com>
---
 drivers/acpi/ioapic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/ioapic.c b/drivers/acpi/ioapic.c
index 0f272e2..daf4a40 100644
--- a/drivers/acpi/ioapic.c
+++ b/drivers/acpi/ioapic.c
@@ -46,7 +46,7 @@ static acpi_status setup_res(struct acpi_resource *acpi_res, 
void *data)
        struct resource_win win;
 
        res->flags = 0;
-       if (acpi_dev_filter_resource_type(acpi_res, IORESOURCE_MEM) == 0)
+       if (acpi_dev_filter_resource_type(acpi_res, IORESOURCE_MEM))
                return AE_OK;
 
        if (!acpi_dev_resource_memory(acpi_res, res)) {
-- 
1.8.3.1

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