From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: Re: [PATCH] pwm - Fix possible NULL derefrence. Date: Mon, 30 Jan 2017 08:10:20 +0100 Message-ID: <20170130071020.GE3585@ulmo.ba.sec> References: <1485751953-29341-1-git-send-email-shailendra.v@samsung.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="J4XPiPrVK1ev6Sgr" Return-path: Received: from mail-wj0-f195.google.com ([209.85.210.195]:34135 "EHLO mail-wj0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752421AbdA3HKY (ORCPT ); Mon, 30 Jan 2017 02:10:24 -0500 Content-Disposition: inline In-Reply-To: <1485751953-29341-1-git-send-email-shailendra.v@samsung.com> Sender: linux-pwm-owner@vger.kernel.org List-Id: linux-pwm@vger.kernel.org To: Shailendra Verma Cc: Maxime Ripard , Chen-Yu Tsai , Stephen Warren , Alexandre Courbot , linux-pwm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, p.shailesh@samsung.com, ashish.kalra@samsung.com, Shailendra Verma --J4XPiPrVK1ev6Sgr Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jan 30, 2017 at 10:22:33AM +0530, Shailendra Verma wrote: > of_match_device could return NULL, and so can cause a NULL > pointer dereference later. >=20 > Signed-off-by: Shailendra Verma > --- > drivers/pwm/pwm-sun4i.c | 4 ++++ > drivers/pwm/pwm-tegra.c | 5 +++++ > 2 files changed, 9 insertions(+) Both of these drivers will only run on purely OF systems, so this check is unnecessary. Thierry --J4XPiPrVK1ev6Sgr Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAliO5twACgkQ3SOs138+ s6GhWhAAuYPweIDoZgmOms25t+vRqYAuuocTTOrBEuk3cwgTapKoObqJ/tTLJU1s txlzvRdzjc5F0/XrADYHM35lnbPOmYEkMpDr3NZwKHMMRzTY2EBn1W5E9EiwyH7V AwuXWwf3T3qTOakklS6EmhII8EtQFP+kBvZASMk2huz7QqSgcM2rCsuCLuEL8Y+n 0ThS7hKrVkYM7xI3aqQPY+LSVJ7k961H3DPKvIVVhRxFoUWpEuMwestUmE3EW9fS CfNw7sC4fthN8DPot50NtX2+5YvEEE5yTW0ne+0FX7E4wkvSDwLJbxoauPMZH8f+ LK3mRup2iHFbZZoV+0gn24Jdm9Dx+dyrqC64TOg//YLqNhG/kvm4+nm+cmrnthZr E9ZlVWnos0nK7FFrkcbo0V6Ymrl1mdnd0RDyePtb/OOwHP+evcAnF7qzTcLGPCgc 6iQCodX1uSSdPgnJBsWKG5TgbiKWXOalXaWFXlbhE2sfR31jgPUX1/4aswJQh7x9 W7yHVjTckkebAY0P21bXZvYrntUksJA5oYVYBw62v0Sk7jynYRp0h34SVn9WfLg4 Sa5B0AQaNoPX1YA59u8lZIdl2tiYJfele/ZNl58oVR4A/Ugwqg+UGZWk6MHyoFcv 4nAB6MwEbqHWwiG+09PQqm+MTPl0vdCpQS9LbvRm99nRkZaTwPM= =DhXH -----END PGP SIGNATURE----- --J4XPiPrVK1ev6Sgr-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: thierry.reding@gmail.com (Thierry Reding) Date: Mon, 30 Jan 2017 08:10:20 +0100 Subject: [PATCH] pwm - Fix possible NULL derefrence. In-Reply-To: <1485751953-29341-1-git-send-email-shailendra.v@samsung.com> References: <1485751953-29341-1-git-send-email-shailendra.v@samsung.com> Message-ID: <20170130071020.GE3585@ulmo.ba.sec> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, Jan 30, 2017 at 10:22:33AM +0530, Shailendra Verma wrote: > of_match_device could return NULL, and so can cause a NULL > pointer dereference later. > > Signed-off-by: Shailendra Verma > --- > drivers/pwm/pwm-sun4i.c | 4 ++++ > drivers/pwm/pwm-tegra.c | 5 +++++ > 2 files changed, 9 insertions(+) Both of these drivers will only run on purely OF systems, so this check is unnecessary. Thierry -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: