From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A77EC677F1 for ; Mon, 16 Jan 2023 17:02:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233796AbjAPRC2 (ORCPT ); Mon, 16 Jan 2023 12:02:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56928 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234149AbjAPRBz (ORCPT ); Mon, 16 Jan 2023 12:01:55 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 018D29EED for ; Mon, 16 Jan 2023 08:43:59 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id A0E73B8105D for ; Mon, 16 Jan 2023 16:43:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 09235C433EF; Mon, 16 Jan 2023 16:43:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673887436; bh=STSjNZR7N91BFeFm57uahsrksx9cnBzNkRSiS3d1adc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0/5s55KVcnX/GvQgo68VOD368f5+wyjrrEWFCSTZzJ/OBbswUU0EvTcdb4YlU4oU9 oJLUAmW93dAe4bmR8lLZDOfMF67OrMEm/+B8QQbc9ASpAvC+g0qD46jLQh6DYLq0Pj nlMR2PR3TM7+HFWhydkTtawUCUZAFwVsxrVzI7hg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jiasheng Jiang , Hans Verkuil , Sasha Levin Subject: [PATCH 4.19 149/521] media: coda: Add check for kmalloc Date: Mon, 16 Jan 2023 16:46:51 +0100 Message-Id: <20230116154853.931033700@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230116154847.246743274@linuxfoundation.org> References: <20230116154847.246743274@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jiasheng Jiang [ Upstream commit 6e5e5defdb8b0186312c2f855ace175aee6daf9b ] As the kmalloc may return NULL pointer, it should be better to check the return value in order to avoid NULL poineter dereference, same as the others. Fixes: cb1d3a336371 ("[media] coda: add CODA7541 JPEG support") Signed-off-by: Jiasheng Jiang Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin --- drivers/media/platform/coda/coda-bit.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c index 57b62076b1ba..e73bf8e14f33 100644 --- a/drivers/media/platform/coda/coda-bit.c +++ b/drivers/media/platform/coda/coda-bit.c @@ -901,10 +901,16 @@ static int coda_start_encoding(struct coda_ctx *ctx) } if (dst_fourcc == V4L2_PIX_FMT_JPEG) { - if (!ctx->params.jpeg_qmat_tab[0]) + if (!ctx->params.jpeg_qmat_tab[0]) { ctx->params.jpeg_qmat_tab[0] = kmalloc(64, GFP_KERNEL); - if (!ctx->params.jpeg_qmat_tab[1]) + if (!ctx->params.jpeg_qmat_tab[0]) + return -ENOMEM; + } + if (!ctx->params.jpeg_qmat_tab[1]) { ctx->params.jpeg_qmat_tab[1] = kmalloc(64, GFP_KERNEL); + if (!ctx->params.jpeg_qmat_tab[1]) + return -ENOMEM; + } coda_set_jpeg_compression_quality(ctx, ctx->params.jpeg_quality); } -- 2.35.1