f2fs: return a default value for non-void function

This patch resolves a build warning reported by kbuild test robot.

"
fs/f2fs/segment.c: In function '__get_segment_type':
fs/f2fs/segment.c:806:1: warning: control reaches end of non-void
function [-Wreturn-type]
"

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index ca7b5ffb09d5..fe2cc0bdc115 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -791,11 +791,10 @@ static int __get_segment_type(struct page *page, enum page_type p_type)
                 return __get_segment_type_2(page, p_type);
         case 4:
                 return __get_segment_type_4(page, p_type);
-        case 6:
-                return __get_segment_type_6(page, p_type);
-        default:
-                BUG();
         }
+        /* NR_CURSEG_TYPE(6) logs by default */
+        BUG_ON(sbi->active_logs != NR_CURSEG_TYPE);
+        return __get_segment_type_6(page, p_type);
 }
 
 static void do_write_page(struct f2fs_sb_info *sbi, struct page *page,