ACPI / LPSS: check the result of ioremap()

If it fails we have to skip the device. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
mariux64 · Jan 22, 2015 · 4483d59 · 4483d59
1 parent ec6f34e
commit 4483d59
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
@@ -340,6 +340,8 @@ 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;
 		}