wl1251: fix a memory leak in probe

[safe/jmp/linux-2.6] / kernel / ksysfs.c

diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
index dd0f9e7..21fe3c4 100644 (file)
--- a/kernel/ksysfs.c
+++ b/kernel/ksysfs.c
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kexec.h>
+#include <linux/profile.h>
 #include <linux/sched.h>
 
 #define KERNEL_ATTR_RO(_name) \
@@ -23,7 +24,7 @@ static struct kobj_attribute _name##_attr = __ATTR_RO(_name)
 static struct kobj_attribute _name##_attr = \
        __ATTR(_name, 0644, _name##_show, _name##_store)
 
-#if defined(CONFIG_HOTPLUG) && defined(CONFIG_NET)
+#if defined(CONFIG_HOTPLUG)
 /* current uevent sequence number */
 static ssize_t uevent_seqnum_show(struct kobject *kobj,
                                  struct kobj_attribute *attr, char *buf)
@@ -32,7 +33,7 @@ static ssize_t uevent_seqnum_show(struct kobject *kobj,
 }
 KERNEL_ATTR_RO(uevent_seqnum);
 
-/* uevent helper program, used during early boo */
+/* uevent helper program, used during early boot */
 static ssize_t uevent_helper_show(struct kobject *kobj,
                                  struct kobj_attribute *attr, char *buf)
 {
@@ -53,6 +54,37 @@ static ssize_t uevent_helper_store(struct kobject *kobj,
 KERNEL_ATTR_RW(uevent_helper);
 #endif
 
+#ifdef CONFIG_PROFILING
+static ssize_t profiling_show(struct kobject *kobj,
+                                 struct kobj_attribute *attr, char *buf)
+{
+       return sprintf(buf, "%d\n", prof_on);
+}
+static ssize_t profiling_store(struct kobject *kobj,
+                                  struct kobj_attribute *attr,
+                                  const char *buf, size_t count)
+{
+       int ret;
+
+       if (prof_on)
+               return -EEXIST;
+       /*
+        * This eventually calls into get_option() which
+        * has a ton of callers and is not const.  It is
+        * easiest to cast it away here.
+        */
+       profile_setup((char *)buf);
+       ret = profile_init();
+       if (ret)
+               return ret;
+       ret = create_proc_profile();
+       if (ret)
+               return ret;
+       return count;
+}
+KERNEL_ATTR_RW(profiling);
+#endif
+
 #ifdef CONFIG_KEXEC
 static ssize_t kexec_loaded_show(struct kobject *kobj,
                                 struct kobj_attribute *attr, char *buf)
@@ -68,6 +100,26 @@ static ssize_t kexec_crash_loaded_show(struct kobject *kobj,
 }
 KERNEL_ATTR_RO(kexec_crash_loaded);
 
+static ssize_t kexec_crash_size_show(struct kobject *kobj,
+                                      struct kobj_attribute *attr, char *buf)
+{
+       return sprintf(buf, "%zu\n", crash_get_memory_size());
+}
+static ssize_t kexec_crash_size_store(struct kobject *kobj,
+                                  struct kobj_attribute *attr,
+                                  const char *buf, size_t count)
+{
+       unsigned long cnt;
+       int ret;
+
+       if (strict_strtoul(buf, 0, &cnt))
+               return -EINVAL;
+
+       ret = crash_shrink_memory(cnt);
+       return ret < 0 ? ret : count;
+}
+KERNEL_ATTR_RW(kexec_crash_size);
+
 static ssize_t vmcoreinfo_show(struct kobject *kobj,
                               struct kobj_attribute *attr, char *buf)
 {
@@ -101,17 +153,21 @@ static struct bin_attribute notes_attr = {
        .read = &notes_read,
 };
 
-struct kset *kernel_kset;
-EXPORT_SYMBOL_GPL(kernel_kset);
+struct kobject *kernel_kobj;
+EXPORT_SYMBOL_GPL(kernel_kobj);
 
 static struct attribute * kernel_attrs[] = {
-#if defined(CONFIG_HOTPLUG) && defined(CONFIG_NET)
+#if defined(CONFIG_HOTPLUG)
        &uevent_seqnum_attr.attr,
        &uevent_helper_attr.attr,
 #endif
+#ifdef CONFIG_PROFILING
+       &profiling_attr.attr,
+#endif
 #ifdef CONFIG_KEXEC
        &kexec_loaded_attr.attr,
        &kexec_crash_loaded_attr.attr,
+       &kexec_crash_size_attr.attr,
        &vmcoreinfo_attr.attr,
 #endif
        NULL
@@ -125,39 +181,28 @@ static int __init ksysfs_init(void)
 {
        int error;
 
-       kernel_kset = kset_create_and_add("kernel", NULL, NULL);
-       if (!kernel_kset) {
+       kernel_kobj = kobject_create_and_add("kernel", NULL);
+       if (!kernel_kobj) {
                error = -ENOMEM;
                goto exit;
        }
-       error = sysfs_create_group(&kernel_kset->kobj, &kernel_attr_group);
+       error = sysfs_create_group(kernel_kobj, &kernel_attr_group);
        if (error)
                goto kset_exit;
 
        if (notes_size > 0) {
                notes_attr.size = notes_size;
-               error = sysfs_create_bin_file(&kernel_kset->kobj, &notes_attr);
+               error = sysfs_create_bin_file(kernel_kobj, &notes_attr);
                if (error)
                        goto group_exit;
        }
 
-       /*
-        * Create "/sys/kernel/uids" directory and corresponding root user's
-        * directory under it.
-        */
-       error = uids_kobject_init();
-       if (error)
-               goto notes_exit;
-
        return 0;
 
-notes_exit:
-       if (notes_size > 0)
-               sysfs_remove_bin_file(&kernel_kset->kobj, &notes_attr);
 group_exit:
-       sysfs_remove_group(&kernel_kset->kobj, &kernel_attr_group);
+       sysfs_remove_group(kernel_kobj, &kernel_attr_group);
 kset_exit:
-       kset_unregister(kernel_kset);
+       kobject_put(kernel_kobj);
 exit:
        return error;
 }