linux-kernel - [PATCH 2/2] HID: lg4ff: do not return a value for deinit

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Date:   Tue, 28 Sep 2021 10:39:06 +0200
From:   Benjamin Tissoires <benjamin.tissoires@...hat.com>
To:     Jiri Kosina <jikos@...nel.org>,
        Michal Malý <madcatxster@...oid-pointer.net>
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>
Subject: [PATCH 2/2] HID: lg4ff: do not return a value for deinit

When removing a device, we can not do much if there is an error while
removing it. Use the common pattern of returning void there so we are
not tempted to check on the return value.
And honestly, we were not looking at it, so why bother?

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
---
 drivers/hid/hid-lg4ff.c | 5 ++---
 drivers/hid/hid-lg4ff.h | 4 ++--
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index 5e6a0cef2a06..ad75c86e0bf5 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -1445,7 +1445,7 @@ int lg4ff_init(struct hid_device *hid)
 	return error;
 }
 
-int lg4ff_deinit(struct hid_device *hid)
+void lg4ff_deinit(struct hid_device *hid)
 {
 	struct lg4ff_device_entry *entry;
 	struct lg_drv_data *drv_data;
@@ -1453,7 +1453,7 @@ int lg4ff_deinit(struct hid_device *hid)
 	drv_data = hid_get_drvdata(hid);
 	if (!drv_data) {
 		hid_err(hid, "Error while deinitializing device, no private driver data.\n");
-		return -1;
+		return;
 	}
 	entry = drv_data->device_props;
 	if (!entry)
@@ -1489,5 +1489,4 @@ int lg4ff_deinit(struct hid_device *hid)
 	kfree(entry);
 out:
 	dbg_hid("Device successfully unregistered\n");
-	return 0;
 }
diff --git a/drivers/hid/hid-lg4ff.h b/drivers/hid/hid-lg4ff.h
index 25bc88cd877e..4440e4ea2267 100644
--- a/drivers/hid/hid-lg4ff.h
+++ b/drivers/hid/hid-lg4ff.h
@@ -10,14 +10,14 @@ int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
 int lg4ff_raw_event(struct hid_device *hdev, struct hid_report *report,
 		u8 *rd, int size, struct lg_drv_data *drv_data);
 int lg4ff_init(struct hid_device *hdev);
-int lg4ff_deinit(struct hid_device *hdev);
+void lg4ff_deinit(struct hid_device *hdev);
 #else
 static inline int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
 					   struct hid_usage *usage, s32 value, struct lg_drv_data *drv_data) { return 0; }
 static inline int lg4ff_raw_event(struct hid_device *hdev, struct hid_report *report,
 		u8 *rd, int size, struct lg_drv_data *drv_data) { return 0; }
 static inline int lg4ff_init(struct hid_device *hdev) { return 0; }
-static inline int lg4ff_deinit(struct hid_device *hdev) { return 0; }
+static inline void lg4ff_deinit(struct hid_device *hdev) { return; }
 #endif
 
 #endif
-- 
2.26.3