Messages in this thread Patch in this message | | | From | Catalin Marinas <> | Subject | [PATCH 2.6.17-rc6 7/9] Remove some of the kmemleak false positives | Date | Sun, 11 Jun 2006 12:21:56 +0100 |
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From: Catalin Marinas <catalin.marinas@arm.com>
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@arm.com> ---
arch/i386/kernel/setup.c | 1 + drivers/base/platform.c | 1 + drivers/hwmon/w83627hf.c | 1 + drivers/scsi/hosts.c | 1 + fs/ext3/dir.c | 1 + ipc/util.c | 2 ++ kernel/params.c | 7 +++++-- mm/slab.c | 1 + net/core/dev.c | 1 + net/sched/sch_generic.c | 1 + 10 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index dd6b0e3..0866fcf 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -1323,6 +1323,7 @@ legacy_init_iomem_resources(struct resou if (e820.map[i].addr + e820.map[i].size > 0x100000000ULL) continue; res = kzalloc(sizeof(struct resource), GFP_ATOMIC); + memleak_not_leak(res); switch (e820.map[i].type) { case E820_RAM: res->name = "System RAM"; break; case E820_ACPI: res->name = "ACPI Tables"; break; diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 83f5c59..f818909 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -166,6 +166,7 @@ struct platform_device *platform_device_ struct platform_object *pa; pa = kzalloc(sizeof(struct platform_object) + strlen(name), GFP_KERNEL); + memleak_padding(pa, 0, sizeof(struct platform_object)); if (pa) { strcpy(pa->name, name); pa->pdev.name = pa->name; diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index 71fb7f1..4208d37 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -1065,6 +1065,7 @@ static int w83627hf_detect(struct i2c_ad err = -ENOMEM; goto ERROR1; } + memleak_container(struct w83627hf_data, client); new_client = &data->client; i2c_set_clientdata(new_client, data); diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index dfcb96f..0a05151 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -297,6 +297,7 @@ struct Scsi_Host *scsi_host_alloc(struct shost = kzalloc(sizeof(struct Scsi_Host) + privsize, gfp_mask); if (!shost) return NULL; + memleak_padding(shost, 0, sizeof(struct Scsi_Host)); spin_lock_init(&shost->default_lock); scsi_assign_lock(shost, &shost->default_lock); diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c index f37528e..f66fbed 100644 --- a/fs/ext3/dir.c +++ b/fs/ext3/dir.c @@ -346,6 +346,7 @@ int ext3_htree_store_dirent(struct file new_fn = kmalloc(len, GFP_KERNEL); if (!new_fn) return -ENOMEM; + memleak_padding(new_fn, 0, sizeof(struct fname)); memset(new_fn, 0, len); new_fn->hash = hash; new_fn->minor_hash = minor_hash; diff --git a/ipc/util.c b/ipc/util.c index 8193299..dcf3e2d 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_not_leak(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_not_leak(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..a30beaf 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_not_leak(mp); } /* diff --git a/mm/slab.c b/mm/slab.c index 0d38f74..395e7bb 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3357,6 +3357,7 @@ void *__alloc_percpu(size_t size) memset(pdata->ptrs[i], 0, size); } + memleak_not_leak(pdata); /* Catch derefs w/o wrappers */ return (void *)(~(unsigned long)pdata); diff --git a/net/core/dev.c b/net/core/dev.c index 4fba549..2ab745f 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3103,6 +3103,7 @@ struct net_device *alloc_netdev(int size dev = (struct net_device *) (((long)p + NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST); dev->padded = (char *)dev - (char *)p; + memleak_padding(p, dev->padded, sizeof(struct net_device)); if (sizeof_priv) dev->priv = netdev_priv(dev); diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 138ea92..5422889 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -427,6 +427,7 @@ struct Qdisc *qdisc_alloc(struct net_dev memset(p, 0, size); sch = (struct Qdisc *) QDISC_ALIGN((unsigned long) p); sch->padded = (char *) sch - (char *) p; + memleak_padding(p, sch->padded, sizeof(struct Qdisc)); INIT_LIST_HEAD(&sch->list); skb_queue_head_init(&sch->q); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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