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Thu, 21 Aug 2025 05:30:34 -0700 (PDT) Received: from localhost ([196.207.164.177]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-45b4db6855bsm26892795e9.17.2025.08.21.05.30.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Aug 2025 05:30:34 -0700 (PDT) Date: Thu, 21 Aug 2025 15:30:30 +0300 From: Dan Carpenter To: Joseph Guo Cc: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: [PATCH next] drm: bridge: waveshare-dsi: Fix NULL vs IS_ERR() check in probe() Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline X-Mailer: git-send-email haha only kidding Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The devm_drm_bridge_alloc() function returns error pointers, it never returns NULL. Fix the checking to match. Fixes: dbdea37add13 ("drm: bridge: Add waveshare DSI2DPI unit driver") Signed-off-by: Dan Carpenter --- drivers/gpu/drm/bridge/waveshare-dsi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/bridge/waveshare-dsi.c b/drivers/gpu/drm/bridg= e/waveshare-dsi.c index 01c70e7d3d3b..43f4e7412d72 100644 --- a/drivers/gpu/drm/bridge/waveshare-dsi.c +++ b/drivers/gpu/drm/bridge/waveshare-dsi.c @@ -147,8 +147,8 @@ static int ws_bridge_probe(struct i2c_client *i2c) int ret; =20 ws =3D devm_drm_bridge_alloc(dev, struct ws_bridge, bridge, &ws_bridge_br= idge_funcs); - if (!ws) - return -ENOMEM; + if (IS_ERR(ws)) + return PTR_ERR(ws); =20 ws->dev =3D dev; =20 --=20 2.47.2