From patchwork Fri Feb 2 12:23:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13542877 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 aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8FC6C47DB3 for ; Fri, 2 Feb 2024 12:23:48 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web10.21394.1706876625767381363 for ; Fri, 02 Feb 2024 04:23:46 -0800 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.05,238,1701097200"; d="scan'208";a="192661184" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 02 Feb 2024 21:23:46 +0900 Received: from localhost.localdomain (unknown [10.226.93.210]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 87B1A421842C; Fri, 2 Feb 2024 21:23:44 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Lad Prabhakar Subject: [PATCH 5.10.y-cip 2/6] clk: versaclock3: Update vc3_get_div() to avoid divide by zero Date: Fri, 2 Feb 2024 12:23:34 +0000 Message-Id: <20240202122338.309435-3-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240202122338.309435-1-biju.das.jz@bp.renesas.com> References: <20240202122338.309435-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Fri, 02 Feb 2024 12:23:48 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/14630 commit eb16ddb838dd8602961b5fc17d1350cd41ae69e0 upstream. Update vc3_get_div() to avoid divide by zero operation on vc3_div_round_rate() by returning1, if there is no table match found. Signed-off-by: Biju Das Link: https://lore.kernel.org/r/20231122142310.203169-2-biju.das.jz@bp.renesas.com Signed-off-by: Stephen Boyd Signed-off-by: Biju Das --- drivers/clk/clk-versaclock3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/clk-versaclock3.c b/drivers/clk/clk-versaclock3.c index aa36c68ea09a..2443ff3b4eee 100644 --- a/drivers/clk/clk-versaclock3.c +++ b/drivers/clk/clk-versaclock3.c @@ -475,7 +475,7 @@ static unsigned int vc3_get_div(const struct clk_div_table *table, if (clkt->val == val) return clkt->div; - return 0; + return 1; } static unsigned long vc3_div_recalc_rate(struct clk_hw *hw,