[PATCH 2.6.17-rc5 6/7] Remove some of the kmemleak false positives

From: Catalin Marinas
Date: Sat May 27 2006 - 08:24:33 EST


From: Catalin Marinas <catalin.marinas@xxxxxxx>

There are allocations for which the main pointer cannot be found but they
are not memory leaks. This patch fixes some of them.

Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
---

ipc/util.c | 2 ++
kernel/params.c | 7 +++++--
2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/ipc/util.c b/ipc/util.c
index 8193299..412b7f3 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -389,6 +389,7 @@ void* ipc_rcu_alloc(int size)
*/
if (rcu_use_vmalloc(size)) {
out = vmalloc(HDRLEN_VMALLOC + size);
+ memleak_debug_false_alarm(out);
if (out) {
out += HDRLEN_VMALLOC;
container_of(out, struct ipc_rcu_hdr, data)->is_vmalloc = 1;
@@ -396,6 +397,7 @@ void* ipc_rcu_alloc(int size)
}
} else {
out = kmalloc(HDRLEN_KMALLOC + size, GFP_KERNEL);
+ memleak_debug_false_alarm(out);
if (out) {
out += HDRLEN_KMALLOC;
container_of(out, struct ipc_rcu_hdr, data)->is_vmalloc = 0;
diff --git a/kernel/params.c b/kernel/params.c
index af43ecd..412c712 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -548,6 +548,7 @@ static void __init kernel_param_sysfs_se
unsigned int name_skip)
{
struct module_kobject *mk;
+ struct module_param_attrs *mp;

mk = kzalloc(sizeof(struct module_kobject), GFP_KERNEL);
BUG_ON(!mk);
@@ -557,11 +558,13 @@ static void __init kernel_param_sysfs_se
kobject_set_name(&mk->kobj, name);
kobject_register(&mk->kobj);

+ mp = param_sysfs_setup(mk, kparam, num_params, name_skip);
/* no need to keep the kobject if no parameter is exported */
- if (!param_sysfs_setup(mk, kparam, num_params, name_skip)) {
+ if (!mp) {
kobject_unregister(&mk->kobj);
kfree(mk);
- }
+ } else
+ memleak_debug_false_alarm(mp);
}

/*
-
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