i2c: acpi: Replace custom function with device_match_acpi_handle()

Since driver core provides a generic device_match_acpi_handle()
we may replace the custom one with it. This unifies code to find
an adapter with the similar one which finds a client.

Acked-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20211014134756.39092-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index 546cc935e035a57dcb65c2896216a408f3a4a705..80631f93ad2fe32accd408a23b552b08632fbc06 100644 (file)
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -398,24 +398,20 @@ u32 i2c_acpi_find_bus_speed(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(i2c_acpi_find_bus_speed);
 
-static int i2c_acpi_find_match_adapter(struct device *dev, const void *data)
-{
-       struct i2c_adapter *adapter = i2c_verify_adapter(dev);
-
-       if (!adapter)
-               return 0;
-
-       return ACPI_HANDLE(dev) == (acpi_handle)data;
-}
-
 struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle handle)
 {
+       struct i2c_adapter *adapter;
        struct device *dev;
 
-       dev = bus_find_device(&i2c_bus_type, NULL, handle,
-                             i2c_acpi_find_match_adapter);
+       dev = bus_find_device(&i2c_bus_type, NULL, handle, device_match_acpi_handle);
+       if (!dev)
+               return NULL;
+
+       adapter = i2c_verify_adapter(dev);
+       if (!adapter)
+               put_device(dev);
 
-       return dev ? i2c_verify_adapter(dev) : NULL;
+       return adapter;
 }
 EXPORT_SYMBOL_GPL(i2c_acpi_find_adapter_by_handle);