1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 5c00e5e18da8..676c9788e1c8 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -819,6 +819,24 @@ const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
 }
 EXPORT_SYMBOL_GPL(acpi_match_device);
 
+void *acpi_get_match_data(const struct device *dev)
+{
+        const struct acpi_device_id *match;
+
+        if (!dev->driver)
+                return NULL;
+
+        if (!dev->driver->acpi_match_table)
+                return NULL;
+
+        match = acpi_match_device(dev->driver->acpi_match_table, dev);
+        if (!match)
+                return NULL;
+
+        return (void *)match->driver_data;
+}
+EXPORT_SYMBOL_GPL(acpi_get_match_data);
+
 int acpi_match_device_ids(struct acpi_device *device,
                           const struct acpi_device_id *ids)
 {