From patchwork Tue Oct 31 16:30:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 13441876 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 AFA06C4332F for ; Tue, 31 Oct 2023 16:34:11 +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=gRW/QMlnrGCj9zbiU9aDl3JV+HQDIdqNHsSk/EtP4OI=; b=e26krBf7yqzTXx wZJcwV5bX9zlWSUaSbOcx3k0f7Hvu4+9gbBgl9Et+AKmGaJxNwZfuzgO3Qq9JUi1eBhHYZmxEKaGI A5JAiAzE/jxdYWNDQ8gUiQdB2YpW4hUCJ3/GKGGCxlaxqzA9NXedrCxxR+/VBfw2ZZrQtjr6s75pR Ph1xcWgX2CoR+AnwKQ4WNLTr+UZqkGQUhiAVndiRogw6g6X/7P+FOV/G87+DChpGDrCFDmFhsIzMC 8YOKjU2u9soJ71URzG4tvhPpw5R8R7PVbEUb0QmrYHcleC0/eIJ0iCa49Y/S77RHN72/PGrw0Q15h ZJTyY5NHoJeoM3HPk9ZA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qxrgX-005dg6-0N; Tue, 31 Oct 2023 16:33:45 +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 1qxreS-005bvX-0t; Tue, 31 Oct 2023 16:31:37 +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 A912F66073B5; Tue, 31 Oct 2023 16:31:34 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1698769895; bh=6OByUfiYmown+37pp4jYIRU8BDesYsod95qP0wK3edE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=F3Pa6WYWIPOnG7UN0NlXMBpnASoJAP5Jk88EK0wOOYckg69ulYDrMsVhjkbd5y0B8 0jcAaJYzKDEDg6BgY4Jah1imB+cITnHQ5KhubiOVRUBhNo6WF908teTcinStBWewC4 Gk5qjKsPF3fIFhEOmqzEGyLCk5HFHoudXIFjzBo7jjjUkqZmHDaMQICYtLZaPSbdAM T5sk5KMfqC4p28VZOefLpy3AvsdDX2mybnEF9VSFNR68Jkk7FfSQ0zuhOWBgx73I0C 3OBIOemgO7xAk+VLyLJ7Zq+lfsJ8qGfK5AX1b51XldMQoEEYs9SJWeGykJDBO/Hw/1 GEdQ+BnTP9SUQ== 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 v14 14/56] media: sti: hva: Use vb2_get_buffer() instead of directly access to buffers array Date: Tue, 31 Oct 2023 17:30:22 +0100 Message-Id: <20231031163104.112469-15-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_093136_464516_89268222 X-CRM114-Status: GOOD ( 12.61 ) 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. 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; }