oprofile: simplify sync_buffer()

Make code more readable. No functional changes.

Signed-off-by: Robert Richter <robert.richter@amd.com>

1 files changed, 14 insertions, 6 deletions

diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index 0abe29e7e4c7..22cdb5108360 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -579,12 +579,20 @@ void sync_buffer(int cpu)
                                 add_user_ctx_switch(new, cookie);
                                 break;
                         }
-                } else if (state >= sb_bt_start &&
-                           !add_sample(mm, s, in_kernel)) {
-                        if (state == sb_bt_start) {
-                                state = sb_bt_ignore;
-                                atomic_inc(&oprofile_stats.bt_lost_no_mapping);
-                        }
+                        continue;
+                }
+
+                if (state < sb_bt_start)
+                        /* ignore sample */
+                        continue;
+
+                if (add_sample(mm, s, in_kernel))
+                        continue;
+
+                /* ignore backtraces if failed to add a sample */
+                if (state == sb_bt_start) {
+                        state = sb_bt_ignore;
+                        atomic_inc(&oprofile_stats.bt_lost_no_mapping);
                 }
         }
         release_mm(mm);