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-rw-r--r--lib/dynamic_printk.c6
-rw-r--r--lib/idr.c8
-rw-r--r--lib/percpu_counter.c7
3 files changed, 12 insertions, 9 deletions
diff --git a/lib/dynamic_printk.c b/lib/dynamic_printk.c
index d83660fd6fdd..8e30295e8566 100644
--- a/lib/dynamic_printk.c
+++ b/lib/dynamic_printk.c
@@ -135,7 +135,7 @@ int unregister_dynamic_debug_module(char *mod_name)
nr_entries--;
out:
up(&debug_list_mutex);
- return 0;
+ return ret;
}
EXPORT_SYMBOL_GPL(unregister_dynamic_debug_module);
@@ -289,7 +289,7 @@ static ssize_t pr_debug_write(struct file *file, const char __user *buf,
dynamic_enabled = DYNAMIC_ENABLED_SOME;
err = 0;
printk(KERN_DEBUG
- "debugging enabled for module %s",
+ "debugging enabled for module %s\n",
elem->name);
} else if (!value && (elem->enable == 1)) {
elem->enable = 0;
@@ -309,7 +309,7 @@ static ssize_t pr_debug_write(struct file *file, const char __user *buf,
err = 0;
printk(KERN_DEBUG
"debugging disabled for module "
- "%s", elem->name);
+ "%s\n", elem->name);
}
}
}
diff --git a/lib/idr.c b/lib/idr.c
index 7a785a0c2ea0..1c4f9281f412 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -220,8 +220,14 @@ build_up:
*/
while ((layers < (MAX_LEVEL - 1)) && (id >= (1 << (layers*IDR_BITS)))) {
layers++;
- if (!p->count)
+ if (!p->count) {
+ /* special case: if the tree is currently empty,
+ * then we grow the tree by moving the top node
+ * upwards.
+ */
+ p->layer++;
continue;
+ }
if (!(new = get_from_free_list(idp))) {
/*
* The allocation failed. If we built part of
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index a8663890a88c..b255b939bc1b 100644
--- a/lib/percpu_counter.c
+++ b/lib/percpu_counter.c
@@ -62,10 +62,7 @@ s64 __percpu_counter_sum(struct percpu_counter *fbc)
for_each_online_cpu(cpu) {
s32 *pcount = per_cpu_ptr(fbc->counters, cpu);
ret += *pcount;
- *pcount = 0;
}
- fbc->count = ret;
-
spin_unlock(&fbc->lock);
return ret;
}
@@ -104,13 +101,13 @@ void percpu_counter_destroy(struct percpu_counter *fbc)
if (!fbc->counters)
return;
- free_percpu(fbc->counters);
- fbc->counters = NULL;
#ifdef CONFIG_HOTPLUG_CPU
mutex_lock(&percpu_counters_lock);
list_del(&fbc->list);
mutex_unlock(&percpu_counters_lock);
#endif
+ free_percpu(fbc->counters);
+ fbc->counters = NULL;
}
EXPORT_SYMBOL(percpu_counter_destroy);