ring-buffer: rename label out_unlock to out_reset

Impact: clean up

While reviewing the ring buffer code, I thougth I saw a bug with

	if (!__raw_spin_trylock(&cpu_buffer->lock))
		goto out_unlock;

But I forgot that we use a variable "lock_taken" that is set if
the spinlock is taken, and only unlock it if that variable is set.

To avoid further confusion from other reviewers, this patch
renames the label out_unlock with out_reset, which is the more
appropriate name.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index dc18b5b9ccb4..f39d7e9a4305 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1017,7 +1017,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
                  */
                 if (unlikely(in_nmi())) {
                         if (!__raw_spin_trylock(&cpu_buffer->lock))
-                                goto out_unlock;
+                                goto out_reset;
                 } else
                         __raw_spin_lock(&cpu_buffer->lock);
 
@@ -1030,7 +1030,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
 
                 /* we grabbed the lock before incrementing */
                 if (RB_WARN_ON(cpu_buffer, next_page == reader_page))
-                        goto out_unlock;
+                        goto out_reset;
 
                 /*
                  * If for some reason, we had an interrupt storm that made
@@ -1039,12 +1039,12 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
                  */
                 if (unlikely(next_page == commit_page)) {
                         WARN_ON_ONCE(1);
-                        goto out_unlock;
+                        goto out_reset;
                 }
 
                 if (next_page == head_page) {
                         if (!(buffer->flags & RB_FL_OVERWRITE))
-                                goto out_unlock;
+                                goto out_reset;
 
                         /* tail_page has not moved yet? */
                         if (tail_page == cpu_buffer->tail_page) {
@@ -1118,7 +1118,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
 
         return event;
 
- out_unlock:
+ out_reset:
         /* reset write */
         if (tail <= BUF_PAGE_SIZE)
                 local_set(&tail_page->write, tail);