[PATCH v4 2/3] i2c: acpi: Replace custom function with device_match_acpi_handle()

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

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.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Wolfram Sang <wsa@kernel.org>
---
v4: added tag (Wolfram)
 drivers/i2c/i2c-core-acpi.c | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index 7ea2ac712a57..0aea776cd4c9 100644
--- 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);
 
-- 
2.33.0