Merge branches 'x86/cache', 'x86/debug' and 'x86/irq' into x86/urgent

[GitHub/LineageOS/android_kernel_motorola_exynos9610.git] / drivers / acpi / glue.c

diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index f8d65647ea790dd161b07221b9be2bdead4447d0..fb19e1cdb6415ac8d1913e7017106911dcb7a7dd 100644 (file)
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -98,7 +98,15 @@ static int find_child_checks(struct acpi_device *adev, bool check_children)
        if (check_children && list_empty(&adev->children))
                return -ENODEV;
 
-       return sta_present ? FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE;
+       /*
+        * If the device has a _HID (or _CID) returning a valid ACPI/PNP
+        * device ID, it is better to make it look less attractive here, so that
+        * the other device with the same _ADR value (that may not have a valid
+        * device ID) can be matched going forward.  [This means a second spec
+        * violation in a row, so whatever we do here is best effort anyway.]
+        */
+       return sta_present && list_empty(&adev->pnp.ids) ?
+                       FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE;
 }
 
 struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
@@ -250,7 +258,6 @@ int acpi_bind_one(struct device *dev, struct acpi_device *acpi_dev)
        return 0;
 
  err:
-       acpi_dma_deconfigure(dev);
        ACPI_COMPANION_SET(dev, NULL);
        put_device(dev);
        put_device(&acpi_dev->dev);