From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D113D174CA for ; Wed, 9 Aug 2023 10:58:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51F1CC433C7; Wed, 9 Aug 2023 10:58:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1691578680; bh=Mis3xshci9iVAlLvKaAqXkF6ndpHhAW4bGRaQFImN0M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eupElMbHa/pNLezqqjxAz+31ELIb/7ILsRjsqof0eEeUcHAQTvkkEoREz3h9uhVb7 DEJqjBmb61CQKcU4OzsWZ9JggQJNXSza39L+2WGle4pCgKQHYjmDNi1EpJSRAinWUq 7jINH3Ki4sxrsDI3BVBH3E7DPiZ3g9I41RSBuUKc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yuanjun Gong , Florian Fainelli , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.15 19/92] net: dsa: fix value check in bcm_sf2_sw_probe() Date: Wed, 9 Aug 2023 12:40:55 +0200 Message-ID: <20230809103634.288366772@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230809103633.485906560@linuxfoundation.org> References: <20230809103633.485906560@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Yuanjun Gong [ Upstream commit dadc5b86cc9459581f37fe755b431adc399ea393 ] in bcm_sf2_sw_probe(), check the return value of clk_prepare_enable() and return the error code if clk_prepare_enable() returns an unexpected value. Fixes: e9ec5c3bd238 ("net: dsa: bcm_sf2: request and handle clocks") Signed-off-by: Yuanjun Gong Reviewed-by: Florian Fainelli Link: https://lore.kernel.org/r/20230726170506.16547-1-ruc_gongyuanjun@163.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/dsa/bcm_sf2.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c index d76b2377d66ef..773d751ef169f 100644 --- a/drivers/net/dsa/bcm_sf2.c +++ b/drivers/net/dsa/bcm_sf2.c @@ -1422,7 +1422,9 @@ static int bcm_sf2_sw_probe(struct platform_device *pdev) if (IS_ERR(priv->clk)) return PTR_ERR(priv->clk); - clk_prepare_enable(priv->clk); + ret = clk_prepare_enable(priv->clk); + if (ret) + return ret; priv->clk_mdiv = devm_clk_get_optional(&pdev->dev, "sw_switch_mdiv"); if (IS_ERR(priv->clk_mdiv)) { @@ -1430,7 +1432,9 @@ static int bcm_sf2_sw_probe(struct platform_device *pdev) goto out_clk; } - clk_prepare_enable(priv->clk_mdiv); + ret = clk_prepare_enable(priv->clk_mdiv); + if (ret) + goto out_clk; ret = bcm_sf2_sw_rst(priv); if (ret) { -- 2.40.1