From: Dave Jones <davej@redhat.com>
Date: Wed, 5 Mar 2008 19:20:57 +0000 (-0500)
Subject: [CPUFREQ] Fix missing cpufreq_cpu_put() call in ->show
X-Git-Tag: v2.6.25-rc5~27^2~3
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0db4a8a99f6a8534c526e8c9d4b13d098400d485;p=linux-2.6

[CPUFREQ] Fix missing cpufreq_cpu_put() call in ->show

refactor to use gotos instead of explicit exit paths

Signed-off-by: Dave Jones <davej@redhat.com>
---

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 89a29cd937..6602e1d02d 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -671,13 +671,13 @@ static ssize_t show(struct kobject * kobj, struct attribute * attr ,char * buf)
 {
 	struct cpufreq_policy * policy = to_policy(kobj);
 	struct freq_attr * fattr = to_attr(attr);
-	ssize_t ret;
+	ssize_t ret = -EINVAL;
 	policy = cpufreq_cpu_get(policy->cpu);
 	if (!policy)
-		return -EINVAL;
+		goto no_policy;
 
 	if (lock_policy_rwsem_read(policy->cpu) < 0)
-		return -EINVAL;
+		goto fail;
 
 	if (fattr->show)
 		ret = fattr->show(policy, buf);
@@ -685,8 +685,9 @@ static ssize_t show(struct kobject * kobj, struct attribute * attr ,char * buf)
 		ret = -EIO;
 
 	unlock_policy_rwsem_read(policy->cpu);
-
+fail:
 	cpufreq_cpu_put(policy);
+no_policy:
 	return ret;
 }