The patch titled
drivers/cpufreq: add calls to cpufreq_cpu_put
has been removed from the -mm tree. Its filename was
drivers-cpufreq-add-calls-to-cpufreq_cpu_put.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: drivers/cpufreq: add calls to cpufreq_cpu_put
From: Julia Lawall <julia@xxxxxxx>
A call to cpufreq_cpu_get should be matched by a call to cpufreq_cpu_put.
The problem was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
type T;
identifier E;
expression E1, E2;
int ret;
statement S;
@@
T E;
... when any
(
E = cpufreq_cpu_get(...);
if (E == NULL) S
|
if ((E = cpufreq_cpu_get(...)) == NULL) S
)
... when != E2 = E
when strict
(
cpufreq_cpu_put(E);
|
E1 = E;
|
+ cpufreq_cpu_put(E);
return;
|
+ cpufreq_cpu_put(E);
return ret;
)
// </smpl>
Signed-off-by: Julia Lawall <julia@xxxxxxx>
Cc: Dave Jones <davej@xxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/cpufreq/cpufreq.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff -puN drivers/cpufreq/cpufreq.c~drivers-cpufreq-add-calls-to-cpufreq_cpu_put drivers/cpufreq/cpufreq.c
--- a/drivers/cpufreq/cpufreq.c~drivers-cpufreq-add-calls-to-cpufreq_cpu_put
+++ a/drivers/cpufreq/cpufreq.c
@@ -676,8 +676,10 @@ static ssize_t show(struct kobject * kob
if (!policy)
return -EINVAL;
- if (lock_policy_rwsem_read(policy->cpu) < 0)
+ if (lock_policy_rwsem_read(policy->cpu) < 0) {
+ cpufreq_cpu_put(policy);
return -EINVAL;
+ }
if (fattr->show)
ret = fattr->show(policy, buf);
@@ -700,8 +702,10 @@ static ssize_t store(struct kobject * ko
if (!policy)
return -EINVAL;
- if (lock_policy_rwsem_write(policy->cpu) < 0)
+ if (lock_policy_rwsem_write(policy->cpu) < 0) {
+ cpufreq_cpu_put(policy);
return -EINVAL;
+ }
if (fattr->store)
ret = fattr->store(policy, buf, count);
_
Patches currently in -mm which might be from julia@xxxxxxx are
git-hid.patch
git-net.patch
drivers-net-mv643xx_ethc-use-field_sizeof.patch
drivers-block-viodasdc-use-field_sizeof.patch
-
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