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From:   Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Date:   Fri, 03 Nov 2023 15:14:05 +0200
Subject: [PATCH v2 3/4] drm/bridge: cdns-mhdp8546: Fix use of uninitialized
 variable
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Message-Id: <20231103-uninit-fixes-v2-3-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

'ret' could be uninitialized at the end of the function, although it's
not clear if that can happen in practice.

Fixes: 6a3608eae6d3 ("drm: bridge: cdns-mhdp8546: Enable HDCP")
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
 drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c
index 946212a95598..5e3b8edcf794 100644
--- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c
+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-hdcp.c
@@ -403,7 +403,8 @@ static int _cdns_mhdp_hdcp_disable(struct cdns_mhdp_device *mhdp)
 
 static int _cdns_mhdp_hdcp_enable(struct cdns_mhdp_device *mhdp, u8 content_type)
 {
-	int ret, tries = 3;
+	int ret = -EINVAL;
+	int tries = 3;
 	u32 i;
 
 	for (i = 0; i < tries; i++) {

-- 
2.34.1