From patchwork Thu Oct 12 11:46:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 733060 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 65805C46CA1 for ; Thu, 12 Oct 2023 11:47:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378689AbjJLLrk (ORCPT ); Thu, 12 Oct 2023 07:47:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55232 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1378444AbjJLLrA (ORCPT ); Thu, 12 Oct 2023 07:47:00 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C42D5D8; Thu, 12 Oct 2023 04:46:58 -0700 (PDT) Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:7ae7:b86d:c19a:877e]) (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 46CBA6607365; Thu, 12 Oct 2023 12:46:57 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1697111217; bh=qwarzGzHP5vh6PEOd7Cabtlc3uVGMjYvMu5ypKhoB8o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PE9MjYBPlqrHDjSsYPQkstb5fvWfBm2zhux6BgbrHOSpcZsMmm8tu5MKzKE65wDpB bX4uRrpewZIayuCfop/Dcl9qnlCJq7IE4y/3kktoq2m37PLjuaV601NEC58QDWuXFP MpOC7Q6mzCTp5z4SuSREampVluVgh5oTVujlWEzCnHbEmG7wF3YgKbe8JFV4XMBgb0 Ut34UzvHvwbMMQXHH6E4EVwMNVXAAPJmM6/PdZThL+y1kwyTI+iRiABc4FIPUobRRC g+OMgB+W5tPs7drp3CMYrzxfBIsEB2+1cSfPnaSVAc8ydDgKRWHnd3t5F0R8SV94C0 zuMhHCT9PFvtg== 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 , Daniel Almeida Subject: [PATCH v11 15/56] media: visl: Use vb2_get_buffer() instead of directly access to buffers array Date: Thu, 12 Oct 2023 13:46:01 +0200 Message-Id: <20231012114642.19040-16-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231012114642.19040-1-benjamin.gaignard@collabora.com> References: <20231012114642.19040-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.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 CC: Daniel Almeida CC: Mauro Carvalho Chehab --- 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]);