Input: qt1050 - inline i2c_check_functionality check

Inline the i2c_check_functionality() check, since the function returns a
boolean status rather than an error code.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20260408141926.1181389-3-thorsten.blum@linux.dev
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Author: toblux

drivers/input/keyboard/qt1050.c

@@ -435,8 +435,7 @@ static int qt1050_probe(struct i2c_client *client)
 	int err;
 
 	/* Check basic functionality */
-	err = i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE);
-	if (!err) {
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE)) {
 		dev_err(&client->dev, "%s adapter not supported\n",
 			dev_driver_string(&client->adapter->dev));
 		return -ENODEV;