Re: [PATCH] HID: hid-input: allow input_configured callback return errors

When configuring input device via input_configured callback we may
encounter errors (for example input_mt_init_slots() may fail). Instead
of continuing with half-initialized input device let's allow driver
indicate failures.

diff --git a/drivers/hid/hid-uclogic.c b/drivers/hid/hid-uclogic.c
index b905d50..85ac435 100644
--- a/drivers/hid/hid-uclogic.c
+++ b/drivers/hid/hid-uclogic.c

@@ -731,7 +731,7 @@ static int uclogic_input_mapping(struct hid_device *hdev, struct hid_input *hi,
  	return 0;
  }

-static void uclogic_input_configured(struct hid_device *hdev,
+static int uclogic_input_configured(struct hid_device *hdev,
  		struct hid_input *hi)
  {
  	char *name;

@@ -741,7 +741,7 @@ static void uclogic_input_configured(struct hid_device *hdev,

  	/* no report associated (HID_QUIRK_MULTI_INPUT not set) */
  	if (!hi->report)
-		return;
+		return 0;

  	field = hi->report->field[0];

@@ -774,6 +774,8 @@ static void uclogic_input_configured(struct hid_device *hdev,
  			hi->input->name = name;
  		}
  	}
+
+	return 0;
  }

  /**