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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 88791C6FA82 for ; Sat, 3 Sep 2022 22:41:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230007AbiICWlt (ORCPT ); Sat, 3 Sep 2022 18:41:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60318 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229525AbiICWlr (ORCPT ); Sat, 3 Sep 2022 18:41:47 -0400 Received: from mail-pl1-x62f.google.com (mail-pl1-x62f.google.com [IPv6:2607:f8b0:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7537D474F1; Sat, 3 Sep 2022 15:41:46 -0700 (PDT) Received: by mail-pl1-x62f.google.com with SMTP id 9so2001774plj.11; Sat, 03 Sep 2022 15:41:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date; bh=koGSFeL8YK66YnxxoLTJOiqK09bB1eXPLPZIIXte/UA=; b=ZXlItbIUXZJeBZNi4fNoOofx++nkBztOPswlufi7hsJZuOvgl9SqtGtwpAdeFYlYBk Xe10dyBgBbpZJxD27CP9QLpvKwUWTyCj9VUTj9ZL47QtWZULNg54LFBwryD1qjcnHw+j 7OIHR3kbmDGdP5rf0TVsEZWWtvkyXvf/i8FOsts0U66noZp6g31LEyl0oVN4k6UDDyn6 tjeiFz62s8NnaJg2MzWofok2qg1GITaAFY+wsFSTQehv2ZiYx+Ty5kr6elofC1NNAjNW 6mkcFhQUGgmEHwlS8uKX3Ao27jjJR3bnKA3Jwv6QQw+1phsLAM3FdqrG31ZiwZdJrpdr hbcA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date; bh=koGSFeL8YK66YnxxoLTJOiqK09bB1eXPLPZIIXte/UA=; b=gYEBVp3E1Ap+ssC3zieQWZiOoFyRkmj6HtKAg6PmF2y/Ryv0SNWEdym3tSKeWexAIQ 5/BuD/sGsivXbypG9tpHetgaXlO2ucxQJ3AnzxkI4ZfBzH1PArazhe7jtLDtJHDG8QlO NSBovVABsVMTUO+JTylS/Hubh2KryjjZqw+QSn+AFngBc4yylDxLH5CK5i4JWYjOMazA qfNkzV0MBRB3kj8lUMHGDFlxEz1AoP96Olojl5HbfVy5hiIn34R7qTL47+MIknIWaDrZ bGCaswyW3iekV0F440MgaEkcI0UCEeKe1rae1TPzdlvSrdd8WnE/1pFJ9a+m29AdS6ye 3rkw== X-Gm-Message-State: ACgBeo3mOYO9RP33bHvVn2aLdaxLLYtFF9PnFKEcv7wt3br2fR6b7AWc 2m+uPTSWJsnU7XAUT5AjCXdTW+gfIYyExA== X-Google-Smtp-Source: AA6agR7xv/T1Al2kzbEb0TtlJsWkZsw68moEA8j2FQ+m61VOwRRMvmO56czT0JY0t3aWBR/opjHQJw== X-Received: by 2002:a17:902:8307:b0:172:e611:491f with SMTP id bd7-20020a170902830700b00172e611491fmr41752428plb.111.1662244904427; Sat, 03 Sep 2022 15:41:44 -0700 (PDT) Received: from localhost.localdomain (lily-optiplex-3070.dynamic.ucsd.edu. [2607:f720:1300:3033::1:4dd]) by smtp.googlemail.com with ESMTPSA id i15-20020a17090a2a0f00b001fddb3a5481sm7502193pjd.49.2022.09.03.15.41.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 03 Sep 2022 15:41:44 -0700 (PDT) From: Li Zhong To: linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Cc: mturquette@baylibre.com, sboyd@kernel.org, Li Zhong Subject: [PATCH v2] drivers/clk/clk: check return value of clk_pm_runtime_get() Date: Sat, 3 Sep 2022 15:41:25 -0700 Message-Id: <20220903224125.2276690-1-floridsleeves@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org clk_pm_runtime_get() could fail. Check the return status. Signed-off-by: Li Zhong --- drivers/clk/clk.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 7fc191c15507..09353f7bf052 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -2981,8 +2981,12 @@ static void clk_summary_show_subtree(struct seq_file *s, struct clk_core *c, int level) { struct clk_core *child; + int ret; + + ret = clk_pm_runtime_get(c); + if (ret) + return; - clk_pm_runtime_get(c); clk_summary_show_one(s, c, level); clk_pm_runtime_put(c); -- 2.25.1