From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F06E1168C2 for ; Mon, 8 May 2023 10:28:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51A84C433EF; Mon, 8 May 2023 10:28:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1683541686; bh=dmuIp60d0leTSZJ+I+m6nowOfBegPVAQdNkDSZzb2s0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tm+4AyIX72TpixV5gsSNtBViqz0WFM40Gx9izZkHuPWCdjiiXFsDcvjRTzsJgQT95 shn+qJhEVT8uUXzjIYXE0Qtzxry2mL3Q0fI3AA6bPMWSxbaKsqVt0L00SVlfL4hyb3 DvilguETmVsO56qoFAa7vRND9byWKxGHuLD0YSaY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dan Carpenter , Kieran Bingham , Laurent Pinchart , Sasha Levin Subject: [PATCH 6.2 194/663] drm: rcar-du: Fix a NULL vs IS_ERR() bug Date: Mon, 8 May 2023 11:40:20 +0200 Message-Id: <20230508094434.701944900@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230508094428.384831245@linuxfoundation.org> References: <20230508094428.384831245@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Dan Carpenter [ Upstream commit 40f43730f43699ce8557e4fe59622d4f4b69f44a ] The drmm_encoder_alloc() function returns error pointers. It never returns NULL. Fix the check accordingly. Fixes: 7a1adbd23990 ("drm: rcar-du: Use drmm_encoder_alloc() to manage encoder") Signed-off-by: Dan Carpenter Reviewed-by: Kieran Bingham Reviewed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart Signed-off-by: Sasha Levin --- drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c index b1787be31e92c..7ecec7b04a8d0 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c @@ -109,8 +109,8 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu, renc = drmm_encoder_alloc(&rcdu->ddev, struct rcar_du_encoder, base, &rcar_du_encoder_funcs, DRM_MODE_ENCODER_NONE, NULL); - if (!renc) - return -ENOMEM; + if (IS_ERR(renc)) + return PTR_ERR(renc); renc->output = output; -- 2.39.2