From patchwork Thu Oct 19 12:51:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 13428917 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 D62C4CDB486 for ; Thu, 19 Oct 2023 12:53:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345952AbjJSMxR (ORCPT ); Thu, 19 Oct 2023 08:53:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50128 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345780AbjJSMwp (ORCPT ); Thu, 19 Oct 2023 08:52:45 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C23C106; Thu, 19 Oct 2023 05:52:39 -0700 (PDT) Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:ccea:1fb5:34eb:239b]) (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 C283F6607351; Thu, 19 Oct 2023 13:52:37 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1697719958; bh=6OByUfiYmown+37pp4jYIRU8BDesYsod95qP0wK3edE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=a/iBP9tI59PpwPQ9dsu1USfyNb+IVCYoCR90qa9XiqxLyHgD0yUIGidTF5m93xFk+ QwXu68MSX/tZOufr8Ia91h24G1wkP+3l/Xkz9KrFi91jjqOfrcHS83f8+3PC10ft5E TE++zp/l82sxexjgmNkeYAsRFTbnN4UcNUpbv+Q2BsvhZi6nDlSNPHBG/E3tomc/ag wzB4rK/+SeVQRrzRkQlE8jvrEHR34uq+6Jz3Wjsh02oJcS+VYc0Sl0GROv2xlyUVS+ 9VYfyu6jz7+tF4H2ZIUGxjjSYFwhvITG/517mbqZmaMWIsrH/9/Jzv2sLoMxjIz8s4 D7KWWiQDtfhcQ== 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 , Jean-Christophe Trotin Subject: [PATCH v13 14/56] media: sti: hva: Use vb2_get_buffer() instead of directly access to buffers array Date: Thu, 19 Oct 2023 14:51:40 +0200 Message-Id: <20231019125222.21370-15-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231019125222.21370-1-benjamin.gaignard@collabora.com> References: <20231019125222.21370-1-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 direct access to the vb2_queue bufs array. This allows us to change the type of the bufs in the future. 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. Remove index range test since it is done by vb2_get_buffer(). Signed-off-by: Benjamin Gaignard CC: Jean-Christophe Trotin --- drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/media/platform/st/sti/hva/hva-v4l2.c b/drivers/media/platform/st/sti/hva/hva-v4l2.c index 3a848ca32a0e..cfe83e9dc01b 100644 --- a/drivers/media/platform/st/sti/hva/hva-v4l2.c +++ b/drivers/media/platform/st/sti/hva/hva-v4l2.c @@ -569,14 +569,11 @@ static int hva_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) struct vb2_buffer *vb2_buf; vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, buf->type); - - if (buf->index >= vq->num_buffers) { - dev_dbg(dev, "%s buffer index %d out of range (%d)\n", - ctx->name, buf->index, vq->num_buffers); + vb2_buf = vb2_get_buffer(vq, buf->index); + if (!vb2_buf) { + dev_dbg(dev, "%s buffer index %d not found\n", ctx->name, buf->index); return -EINVAL; } - - vb2_buf = vb2_get_buffer(vq, buf->index); stream = to_hva_stream(to_vb2_v4l2_buffer(vb2_buf)); stream->bytesused = buf->bytesused; }