From: Xia Jiang <xia.jiang@mediatek.com>
Date: Fri, 14 Aug 2020 07:11:34 +0000 (+0200)
Subject: media: platform: Improve subscribe event flow for bug fixing
X-Git-Tag: v5.10-rc1~175^2~512
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8ea373774ac6d4f08df09b62c700c15dafb25458;p=thirdparty%2Fkernel%2Flinux.git

media: platform: Improve subscribe event flow for bug fixing

Let v4l2_ctrl_subscribe_event() do the job for other types except
V4L2_EVENT_SOURCE_CHANGE.

Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Xia Jiang <xia.jiang@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---

diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index 61fed1e35a005..d1b13556e18b3 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -446,9 +446,9 @@ static int mtk_jpeg_subscribe_event(struct v4l2_fh *fh,
 	switch (sub->type) {
 	case V4L2_EVENT_SOURCE_CHANGE:
 		return v4l2_src_change_event_subscribe(fh, sub);
-	default:
-		return -EINVAL;
 	}
+
+	return v4l2_ctrl_subscribe_event(fh, sub);
 }
 
 static int mtk_jpeg_g_selection(struct file *file, void *priv,