linux-kernel - [PATCH v5 2/5] drm/bridge: anx7625: fix not correct return value

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Message-ID: <2295557fc68b89505e18e11fe079c7df361153e8.1616071250.git.xji@analogixsemi.com>
Date:   Fri, 19 Mar 2021 10:37:02 +0800
From:   Xin Ji <xji@...logixsemi.com>
To:     Robert Foss <robert.foss@...aro.org>,
        Nicolas Boichat <drinkcat@...gle.com>,
        Andrzej Hajda <a.hajda@...sung.com>
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>, Torsten Duwe <duwe@....de>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Sheng Pan <span@...logixsemi.com>,
        Bernie Liang <bliang@...logixsemi.com>,
        Zhen Li <zhenli@...logixsemi.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        devel@...verdev.osuosl.org
Subject: [PATCH v5 2/5] drm/bridge: anx7625: fix not correct return value

At some time, the original code may return non zero value, force return 0
if operation finished.

Signed-off-by: Xin Ji <xji@...logixsemi.com>
---
 drivers/gpu/drm/bridge/analogix/anx7625.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 65cc059..04536cc 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -189,10 +189,10 @@ static int wait_aux_op_finish(struct anx7625_data *ctx)
 			       AP_AUX_CTRL_STATUS);
 	if (val < 0 || (val & 0x0F)) {
 		DRM_DEV_ERROR(dev, "aux status %02x\n", val);
-		val = -EIO;
+		return -EIO;
 	}
 
-	return val;
+	return 0;
 }
 
 static int anx7625_video_mute_control(struct anx7625_data *ctx,
-- 
2.7.4