ACPI: LPSS: Replace loop with first entry retrieval

After the commit 6505e452371d ("ACPI: LPSS: Use the helper
acpi_dev_get_memory_resources()") the list is empty or
contains only resource of IORESOURCE_MEM type. Hence, no
need to check for the type, and since we break after the
first found, no need to iterate over full list. That said,
replace loop with first entry retrieval.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 4f6cba8fe8def814f7e0f3f114324e63cd6a4479..c39a0a88f3a3904e8d960da9d5a498ff5b3d5bfc 100644 (file)
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -656,16 +656,14 @@ static int acpi_lpss_create_device(struct acpi_device *adev,
        if (ret < 0)
                goto err_out;
 
-       list_for_each_entry(rentry, &resource_list, node)
-               if (resource_type(rentry->res) == IORESOURCE_MEM) {
-                       if (dev_desc->prv_size_override)
-                               pdata->mmio_size = dev_desc->prv_size_override;
-                       else
-                               pdata->mmio_size = resource_size(rentry->res);
-                       pdata->mmio_base = ioremap(rentry->res->start,
-                                                  pdata->mmio_size);
-                       break;
-               }
+       rentry = list_first_entry_or_null(&resource_list, struct resource_entry, node);
+       if (rentry) {
+               if (dev_desc->prv_size_override)
+                       pdata->mmio_size = dev_desc->prv_size_override;
+               else
+                       pdata->mmio_size = resource_size(rentry->res);
+               pdata->mmio_base = ioremap(rentry->res->start, pdata->mmio_size);
+       }
 
        acpi_dev_free_resource_list(&resource_list);