From patchwork Fri Sep 1 12:44:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 13372534 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D4391CA0FEB for ; Fri, 1 Sep 2023 12:45:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=U2gW/Q+RNn3ntItDX+hvmZgS358f/BD2tGGafv55qEw=; b=WRqS+qs6wmtnCn9kavdTFvpmLp pypI4WHsjNhakmAlithZPPtZ14LHz4nq45n0YNnPbS9BQIQuS4Wwhw8QROo4HwvRPf5oJsEbJJjtS osZh7JEZ7616Y/4saa0hdcPiCKg54QfUB3xFDU7tKgGwgRBrRO1XYs+Gi68dTMFNR9a4kjGrfJ4Y5 fCscT5B1yTLSqCQdWhfcmqtjWTweSIdl6ntQSAclnyavpw8Hco1Rx6J14JOPT/M1ZBgmS1tShsbbV EOPbxaec6vmooixmIx72Iy8duioFEmiZetqzA/hkw3TL+2zbjMTEezTN2Y+gDjQeoOsAonpEvYJS8 vBknNbOA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qc3WJ-00HUv5-1g; Fri, 01 Sep 2023 12:45:03 +0000 Received: from madras.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e5ab]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qc3Vm-00HUHQ-2U; Fri, 01 Sep 2023 12:44:32 +0000 Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:4d01:31d2:de6b:d217]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by madras.collabora.co.uk (Postfix) with ESMTPSA id 2D2FC66072BE; Fri, 1 Sep 2023 13:44:29 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1693572269; bh=Osy0YWOEVUvzSOYoJm+JBXSigMNkmpw77qpRTwkivks=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fE50Cfvx/VMcngZqc1bE9+j1nVuS1h6iYK7p30I/8cLa61Ys1tuxPw/+F/iyEdjb7 NYef31l76uAfj5ar9d4tjgkNbA1Q5tDi5KamofpT5YgnhI9y0EfF1q74ZKzf0Mq/L3 IRywATg2i6SCeUduM7NxhF90xSg+AOgE8cYYSL0lRUQQnyShX/mmC/eG/OnFzqf4mO ivROKkVS9w541jjgDR+ZybUY02nPJSGIBVJX4oR/OIrimx9u5OvgQ+8hJut0wVZLGT IUAncdhh908JOlt1d35UOfomRSKnaEdDBQ+Xx7ZT47dofQWoyzjzR8DON5pYfjEmNw NiWFi6+aiPiMg== From: Benjamin Gaignard To: mchehab@kernel.org, tfiga@chromium.org, m.szyprowski@samsung.com, ming.qian@nxp.com, ezequiel@vanguardiasur.com.ar, p.zabel@pengutronix.de, gregkh@linuxfoundation.org, hverkuil-cisco@xs4all.nl, nicolas.dufresne@collabora.com Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v6 08/18] media: visl: Use vb2_get_buffer() instead of directly access to buffers array Date: Fri, 1 Sep 2023 14:44:04 +0200 Message-Id: <20230901124414.48497-9-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230901124414.48497-1-benjamin.gaignard@collabora.com> References: <20230901124414.48497-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230901_054431_004375_8CA08690 X-CRM114-Status: GOOD ( 12.48 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array. This could allow to change the type bufs[] field of vb2_buffer structure if needed. After each call to vb2_get_buffer() we need to be sure that we get a valid pointer so check the return value of all of them. Signed-off-by: Benjamin Gaignard --- drivers/media/test-drivers/visl/visl-dec.c | 28 ++++++++++++++++------ 1 file changed, 21 insertions(+), 7 deletions(-) diff --git a/drivers/media/test-drivers/visl/visl-dec.c b/drivers/media/test-drivers/visl/visl-dec.c index 318d675e5668..ba20ea998d19 100644 --- a/drivers/media/test-drivers/visl/visl-dec.c +++ b/drivers/media/test-drivers/visl/visl-dec.c @@ -290,13 +290,20 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run) for (i = 0; i < out_q->num_buffers; i++) { char entry[] = "index: %u, state: %s, request_fd: %d, "; u32 old_len = len; - char *q_status = visl_get_vb2_state(out_q->bufs[i]->state); + struct vb2_buffer *vb2; + char *q_status; + + vb2 = vb2_get_buffer(out_q, i); + if (!vb2) + continue; + + q_status = visl_get_vb2_state(vb2->state); len += scnprintf(&buf[len], TPG_STR_BUF_SZ - len, entry, i, q_status, - to_vb2_v4l2_buffer(out_q->bufs[i])->request_fd); + to_vb2_v4l2_buffer(vb2)->request_fd); - len += visl_fill_bytesused(to_vb2_v4l2_buffer(out_q->bufs[i]), + len += visl_fill_bytesused(to_vb2_v4l2_buffer(vb2), &buf[len], TPG_STR_BUF_SZ - len); @@ -342,13 +349,20 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run) len = 0; for (i = 0; i < cap_q->num_buffers; i++) { u32 old_len = len; - char *q_status = visl_get_vb2_state(cap_q->bufs[i]->state); + struct vb2_buffer *vb2; + char *q_status; + + vb2 = vb2_get_buffer(cap_q, i); + if (!vb2) + continue; + + q_status = visl_get_vb2_state(vb2->state); len += scnprintf(&buf[len], TPG_STR_BUF_SZ - len, "index: %u, status: %s, timestamp: %llu, is_held: %d", - cap_q->bufs[i]->index, q_status, - cap_q->bufs[i]->timestamp, - to_vb2_v4l2_buffer(cap_q->bufs[i])->is_held); + vb2->index, q_status, + vb2->timestamp, + to_vb2_v4l2_buffer(vb2)->is_held); tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, &buf[old_len]); frame_dprintk(ctx->dev, run->dst->sequence, "%s", &buf[old_len]);