[linux-yocto] [PATCH 09/34] ACPI / LPSS: check the result of ioremap()

[wei.tee.ng at intel.com]

From: Heikki Krogerus <heikki.krogerus at linux.intel.com>

If it fails we have to skip the device.

Signed-off-by: Heikki Krogerus <heikki.krogerus at linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki at intel.com>
(cherry picked from commit 4483d59e29fea65ef428be92a866aed50e28c795)

Signed-off-by: Ng Wei Tee <wei.tee.ng at intel.com>
---
 drivers/acpi/acpi_lpss.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index e7d257a..1be4155 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -352,6 +352,8 @@ static int acpi_lpss_create_device(struct acpi_device *adev,
 				pdata->mmio_size = resource_size(&rentry->res);
 			pdata->mmio_base = ioremap(rentry->res.start,
 						   pdata->mmio_size);
+			if (!pdata->mmio_base)
+				goto err_out;
 			break;
 		}
 
-- 
1.7.9.5