Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.32 as permitted sender) client-ip=23.128.96.32;
From:   Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Date:   Fri, 03 Nov 2023 15:14:06 +0200
Subject: [PATCH v2 4/4] drm/bridge: tc358767: Fix return value on error
 case
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Message-Id: <20231103-uninit-fixes-v2-4-c22b2444f5f5@ideasonboard.com>
References: <20231103-uninit-fixes-v2-0-c22b2444f5f5@ideasonboard.com>
In-Reply-To: <20231103-uninit-fixes-v2-0-c22b2444f5f5@ideasonboard.com>
To:     Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Maxime Ripard <mripard@kernel.org>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        David Airlie <airlied@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Francesco Dolcini <francesco.dolcini@toradex.com>,
        Andrzej Hajda <andrzej.hajda@intel.com>,
        Neil Armstrong <neil.armstrong@linaro.org>,
        Robert Foss <rfoss@kernel.org>,
        Jonas Karlman <jonas@kwiboo.se>,
        Jernej Skrabec <jernej.skrabec@gmail.com>,
        Parshuram Thombare <pthombar@cadence.com>
Cc:     dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Precedence: bulk

If the hpd_pin is invalid, the driver returns 'ret'. But 'ret' contains
0, instead of an error value.

Return -EINVAL instead.

Fixes: f25ee5017e4f ("drm/bridge: tc358767: add IRQ and HPD support")
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
 drivers/gpu/drm/bridge/tc358767.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index ef2e373606ba..615cc8f950d7 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -2273,7 +2273,7 @@ static int tc_probe(struct i2c_client *client)
 	} else {
 		if (tc->hpd_pin < 0 || tc->hpd_pin > 1) {
 			dev_err(dev, "failed to parse HPD number\n");
-			return ret;
+			return -EINVAL;
 		}
 	}
 

-- 
2.34.1