linux-kernel - [PATCH v6 2/5] media: uvcvideo: Remove redundant NULL assignment

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Message-Id: <20241203-uvc-fix-async-v6-2-26c867231118@chromium.org>
Date: Tue, 03 Dec 2024 21:20:09 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Hans de Goede <hdegoede@...hat.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Guennadi Liakhovetski <guennadi.liakhovetski@...el.com>
Cc: Hans Verkuil <hverkuil@...all.nl>, 
 Mauro Carvalho Chehab <mchehab+samsung@...nel.org>, 
 linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Ricardo Ribalda <ribalda@...omium.org>, stable@...r.kernel.org
Subject: [PATCH v6 2/5] media: uvcvideo: Remove redundant NULL assignment

ctrl->handle will only be different than NULL for controls that have
mappings. This is because that assignment is only done inside
uvc_ctrl_set() for mapped controls.

Cc: stable@...r.kernel.org
Fixes: e5225c820c05 ("media: uvcvideo: Send a control event when a Control Change interrupt arrives")
Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Reviewed-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
 drivers/media/usb/uvc/uvc_ctrl.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
index 9a80a7d8e73a..42b0a0cdc51c 100644
--- a/drivers/media/usb/uvc/uvc_ctrl.c
+++ b/drivers/media/usb/uvc/uvc_ctrl.c
@@ -1640,10 +1640,8 @@ bool uvc_ctrl_status_event_async(struct urb *urb, struct uvc_video_chain *chain,
 	struct uvc_device *dev = chain->dev;
 	struct uvc_ctrl_work *w = &dev->async_ctrl;
 
-	if (list_empty(&ctrl->info.mappings)) {
-		ctrl->handle = NULL;
+	if (list_empty(&ctrl->info.mappings))
 		return false;
-	}
 
 	w->data = data;
 	w->urb = urb;

-- 
2.47.0.338.g60cca15819-goog