Merge branch 'linus' into tracing/core

[safe/jmp/linux-2.6] / kernel / trace / ring_buffer.c

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index dc6d563..5885cdf 100644 (file)
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/percpu.h>
 #include <linux/mutex.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/hash.h>
 #include <linux/list.h>
@@ -1223,18 +1224,19 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned nr_pages)
 
        for (i = 0; i < nr_pages; i++) {
                if (RB_WARN_ON(cpu_buffer, list_empty(cpu_buffer->pages)))
-                       return;
+                       goto out;
                p = cpu_buffer->pages->next;
                bpage = list_entry(p, struct buffer_page, list);
                list_del_init(&bpage->list);
                free_buffer_page(bpage);
        }
        if (RB_WARN_ON(cpu_buffer, list_empty(cpu_buffer->pages)))
-               return;
+               goto out;
 
        rb_reset_cpu(cpu_buffer);
        rb_check_pages(cpu_buffer);
 
+out:
        spin_unlock_irq(&cpu_buffer->reader_lock);
 }
 
@@ -1251,7 +1253,7 @@ rb_insert_pages(struct ring_buffer_per_cpu *cpu_buffer,
 
        for (i = 0; i < nr_pages; i++) {
                if (RB_WARN_ON(cpu_buffer, list_empty(pages)))
-                       return;
+                       goto out;
                p = pages->next;
                bpage = list_entry(p, struct buffer_page, list);
                list_del_init(&bpage->list);
@@ -1260,6 +1262,7 @@ rb_insert_pages(struct ring_buffer_per_cpu *cpu_buffer,
        rb_reset_cpu(cpu_buffer);
        rb_check_pages(cpu_buffer);
 
+out:
        spin_unlock_irq(&cpu_buffer->reader_lock);
 }