coccinelle reports some warning:
WARNING: Use BUG_ON instead of if condition followed by BUG.

It could be fixed by BUG_ON().

Reported-by: ab...@linux.alibaba.com
Signed-off-by: Alex Shi <alex....@linux.alibaba.com>
Cc: Minchan Kim <minc...@kernel.org>
Cc: Nitin Gupta <ngu...@vflare.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.w...@gmail.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
---
 mm/zsmalloc.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 7289f502ffac..1ea0605dbe94 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1988,8 +1988,7 @@ static int zs_page_migrate(struct address_space *mapping, 
struct page *newpage,
                head = obj_to_head(page, addr);
                if (head & OBJ_ALLOCATED_TAG) {
                        handle = head & ~OBJ_ALLOCATED_TAG;
-                       if (!testpin_tag(handle))
-                               BUG();
+                       BUG_ON(!testpin_tag(handle));
 
                        old_obj = handle_to_obj(handle);
                        obj_to_location(old_obj, &dummy, &obj_idx);
@@ -2036,8 +2035,8 @@ static int zs_page_migrate(struct address_space *mapping, 
struct page *newpage,
                head = obj_to_head(page, addr);
                if (head & OBJ_ALLOCATED_TAG) {
                        handle = head & ~OBJ_ALLOCATED_TAG;
-                       if (!testpin_tag(handle))
-                               BUG();
+                       BUG_ON(!testpin_tag(handle));
+
                        unpin_tag(handle);
                }
        }
-- 
2.29.GIT

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