From patchwork Tue Oct 31 16:30:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 13441871 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 B9094C00142 for ; Tue, 31 Oct 2023 16:33:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=kuyPkAU6An3xA1LepC1GJXhqv83ENqwB+MG50wJAKmE=; b=OmFvaiqqBkO/24 aEIUOX9tU+utk/XgSe8YxVsYyXisT4Xyi/4TyO9TB4Y1dPxTSCiFT/ndyXo2/8yk7oo0HZhDCNwsD 2AcnLD7nA+mK11w0xFJ+5+x0G0H6cEikNM/EjfIOnbpKewt6r7b3eR6imxeAiA7sTSldNQoeLjMDe h5APD0Kq+tOJrLDklIfB6Sh0APw5pOZ2LG4puY1qHyvCij3vy0J5ttme2UD3d9elxYBaeUkL5bmKK XPY0/1Kf5eLuMs0tp37lokdCpgNU4kObWI+r9u2OqP+ueI8WSOpGzxoqz9h4eDLWfKKgI0pXm5HaA AXpvYBjNRaVRKHe+kNTA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qxrfY-005czd-2c; Tue, 31 Oct 2023 16:32:44 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qxreK-005boK-2O; Tue, 31 Oct 2023 16:31:30 +0000 Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:c562:2ef4:80c0:92f]) (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 0E8E06607326; Tue, 31 Oct 2023 16:31:27 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1698769887; bh=FY7GH0xZdlXO2pRrzaejblo22FLeSWf56n9mo0hrqhY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ULa4xApz5pyQAl9SC4HRpUfcwNOboPsl2tpDCL1cXcsGPGjOVgIOTu82fs46q96pQ s8F6ATJeS/Uk5vLDiKqXTAp1Gv9HdyOkkEekiPo4w8p1arI7LB26QzcT7T8GDW49RK o7oUIZQaByGluKhEAHraBwNLtWgb23p0kCKph7eHP5GrR8Od+pv4Tinq+aez/75WRq fZbQonnmQQwxI6P+uVAXVobC7sOQ0YMB1xOhGW85+RWeY+0gQ7XLr1hSP9owz7zU0q jItBKgd29lmm/Pz/qcVyD4JqIMfdXVcz4A9fFLrXnpq19JrK6LwV4xXJzRGyk1Ptw1 pBTLSXEe7Oy1w== 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 , Zhou Peng Subject: [PATCH v14 09/56] media: amphion: Use vb2_get_buffer() instead of directly access to buffers array Date: Tue, 31 Oct 2023 17:30:17 +0100 Message-Id: <20231031163104.112469-10-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231031163104.112469-1-benjamin.gaignard@collabora.com> References: <20231031163104.112469-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231031_093128_909160_7394A97E X-CRM114-Status: GOOD ( 12.22 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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. Signed-off-by: Benjamin Gaignard CC: Ming Qian CC: Zhou Peng Reviewed-by: Andrzej Pietrasiewicz --- drivers/media/platform/amphion/vpu_dbg.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/amphion/vpu_dbg.c b/drivers/media/platform/amphion/vpu_dbg.c index 982c2c777484..a462d6fe4ea9 100644 --- a/drivers/media/platform/amphion/vpu_dbg.c +++ b/drivers/media/platform/amphion/vpu_dbg.c @@ -140,11 +140,18 @@ static int vpu_dbg_instance(struct seq_file *s, void *data) vq = v4l2_m2m_get_src_vq(inst->fh.m2m_ctx); for (i = 0; i < vq->num_buffers; i++) { - struct vb2_buffer *vb = vq->bufs[i]; - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vb2_buffer *vb; + struct vb2_v4l2_buffer *vbuf; + + vb = vb2_get_buffer(vq, i); + if (!vb) + continue; if (vb->state == VB2_BUF_STATE_DEQUEUED) continue; + + vbuf = to_vb2_v4l2_buffer(vb); + num = scnprintf(str, sizeof(str), "output [%2d] state = %10s, %8s\n", i, vb2_stat_name[vb->state], @@ -155,11 +162,18 @@ static int vpu_dbg_instance(struct seq_file *s, void *data) vq = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx); for (i = 0; i < vq->num_buffers; i++) { - struct vb2_buffer *vb = vq->bufs[i]; - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vb2_buffer *vb; + struct vb2_v4l2_buffer *vbuf; + + vb = vb2_get_buffer(vq, i); + if (!vb) + continue; if (vb->state == VB2_BUF_STATE_DEQUEUED) continue; + + vbuf = to_vb2_v4l2_buffer(vb); + num = scnprintf(str, sizeof(str), "capture[%2d] state = %10s, %8s\n", i, vb2_stat_name[vb->state],