From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 878F0C33CAF for ; Thu, 16 Jan 2020 23:37:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 58FF920748 for ; Thu, 16 Jan 2020 23:37:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579217858; bh=rnofVM1r06/zCpQPxV0g+/0PybA7btznnK8eSOOv9tw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=RU7tATySNYGWzjaT/J07Rjm6/PrkSGaCnU7rq+JPLcbRDOa3oA2QkiJd7M2/f4Ig3 mP8eKYo4FnOF4SNuZpS+c2niXqXs7dd9dvNerEA1wNT09lToMau/dF4in1VVyi5YCX 4bCG9DUfe/CkZoKITTmbJJK8N6h5XxdHFArfM6MU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404525AbgAPXhd (ORCPT ); Thu, 16 Jan 2020 18:37:33 -0500 Received: from mail.kernel.org ([198.145.29.99]:38288 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390085AbgAPXaw (ORCPT ); Thu, 16 Jan 2020 18:30:52 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 22F882073A; Thu, 16 Jan 2020 23:30:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579217451; bh=rnofVM1r06/zCpQPxV0g+/0PybA7btznnK8eSOOv9tw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JETvV7mtCLlw9CIshlICCAf0usq8jQj1l75pMlfXVkNYnJxNkF+wN8XE/4I6N1XvA 9Utv+S8f/c/vmucG2TxgZb3XVa4tHD6WKkIcJflQHMVAMb6xgxbTNN0I22yRm8SNiX AjkdQKXUuTjV/nXvFY3kUjOWtZP/2rEqkDZPGE5M= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christophe JAILLET , Hans Verkuil , Mauro Carvalho Chehab Subject: [PATCH 4.19 63/84] media: v4l: cadence: Fix how unsued lanes are handled in csi2rx_start() Date: Fri, 17 Jan 2020 00:18:37 +0100 Message-Id: <20200116231721.075335811@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200116231713.087649517@linuxfoundation.org> References: <20200116231713.087649517@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Christophe JAILLET commit 2eca8e4c1df4864b937752c3aa2f7925114f4806 upstream. The 2nd parameter of 'find_first_zero_bit()' is a number of bits, not of bytes. So use 'csi2rx->max_lanes' instead of 'sizeof(lanes_used)'. Fixes: 1fc3b37f34f6 ("media: v4l: cadence: Add Cadence MIPI-CSI2 RX driver") Signed-off-by: Christophe JAILLET Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman --- drivers/media/platform/cadence/cdns-csi2rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -129,7 +129,7 @@ static int csi2rx_start(struct csi2rx_pr */ for (i = csi2rx->num_lanes; i < csi2rx->max_lanes; i++) { unsigned int idx = find_first_zero_bit(&lanes_used, - sizeof(lanes_used)); + csi2rx->max_lanes); set_bit(idx, &lanes_used); reg |= CSI2RX_STATIC_CFG_DLANE_MAP(i, i + 1); }