From patchwork Wed Feb 26 20:17:36 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saravana Kannan X-Patchwork-Id: 3728611 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 4B4959F2F7 for ; Wed, 26 Feb 2014 20:18:26 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 808612020A for ; Wed, 26 Feb 2014 20:18:25 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7D028201F9 for ; Wed, 26 Feb 2014 20:18:24 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WIkvm-0007ah-Vv; Wed, 26 Feb 2014 20:18:15 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WIkvk-0006mT-Kl; Wed, 26 Feb 2014 20:18:12 +0000 Received: from smtp.codeaurora.org ([198.145.11.231]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WIkvg-0006l7-Qg for linux-arm-kernel@lists.infradead.org; Wed, 26 Feb 2014 20:18:09 +0000 Received: from smtp.codeaurora.org (localhost [127.0.0.1]) by smtp.codeaurora.org (Postfix) with ESMTP id 0747213F126; Wed, 26 Feb 2014 20:17:48 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 486) id ED41013F128; Wed, 26 Feb 2014 20:17:47 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from skannan1-linux.qualcomm.com (i-global252.qualcomm.com [199.106.103.252]) (using TLSv1.1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: skannan@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 8C36213EF6D; Wed, 26 Feb 2014 20:17:46 +0000 (UTC) From: Saravana Kannan To: "Rafael J. Wysocki" , Viresh Kumar Subject: [PATCH 1/3] cpufreq: stats: Remove redundant cpufreq_cpu_get() call Date: Wed, 26 Feb 2014 12:17:36 -0800 Message-Id: <1393445858-7062-1-git-send-email-skannan@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140226_151808_962334_DBEABA9C X-CRM114-Status: GOOD ( 14.08 ) X-Spam-Score: -1.9 (-) Cc: linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, cpufreq@vger.kernel.org, Saravana Kannan , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP __cpufreq_stats_create_table always gets pass the valid and real policy struct. So, there's no need to call cpufreq_cpu_get() to get the policy again. Acked-by: Viresh Kumar Signed-off-by: Saravana Kannan --- drivers/cpufreq/cpufreq_stats.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index 5793e14..e4bd27f 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -185,7 +185,6 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy, { unsigned int i, j, count = 0, ret = 0; struct cpufreq_stats *stat; - struct cpufreq_policy *current_policy; unsigned int alloc_size; unsigned int cpu = policy->cpu; if (per_cpu(cpufreq_stats_table, cpu)) @@ -194,13 +193,7 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy, if ((stat) == NULL) return -ENOMEM; - current_policy = cpufreq_cpu_get(cpu); - if (current_policy == NULL) { - ret = -EINVAL; - goto error_get_fail; - } - - ret = sysfs_create_group(¤t_policy->kobj, &stats_attr_group); + ret = sysfs_create_group(&policy->kobj, &stats_attr_group); if (ret) goto error_out; @@ -243,11 +236,8 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy, stat->last_time = get_jiffies_64(); stat->last_index = freq_table_get_index(stat, policy->cur); spin_unlock(&cpufreq_stats_lock); - cpufreq_cpu_put(current_policy); return 0; error_out: - cpufreq_cpu_put(current_policy); -error_get_fail: kfree(stat); per_cpu(cpufreq_stats_table, cpu) = NULL; return ret;