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[2003:e4:1f0f:a600:f22f:74ff:fe1f:3a53]) by smtp.gmail.com with ESMTPSA id ty14-20020a170907c70e00b00a1d70804ac9sm9616950ejc.33.2023.12.14.09.22.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Dec 2023 09:22:41 -0800 (PST) Date: Thu, 14 Dec 2023 18:22:40 +0100 From: Thierry Reding To: Chen Ni Cc: mperttunen@nvidia.com, airlied@gmail.com, daniel@ffwll.ch, jonathanh@nvidia.com, dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] drm/tegra: dsi: Add missing check for of_find_device_by_node Message-ID: References: <20231024080738.825553-1-nichen@iscas.ac.cn> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="YoXO4vJu2jzRymw/" Content-Disposition: inline In-Reply-To: <20231024080738.825553-1-nichen@iscas.ac.cn> User-Agent: Mutt/2.2.12 (2023-09-09) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --YoXO4vJu2jzRymw/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Oct 24, 2023 at 08:07:38AM +0000, Chen Ni wrote: > Add check for the return value of of_find_device_by_node() and return > the error if it fails in order to avoid NULL pointer dereference. >=20 > Fixes: e94236cde4d5 ("drm/tegra: dsi: Add ganged mode support") > Signed-off-by: Chen Ni > --- > drivers/gpu/drm/tegra/dsi.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) Applied, thanks. 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