Replace unnacessary BUG_ON to WARN_ON. These BUG_ONs verify aruguments of a function. Thus, the WARN_ONs return an EINVAL error when their condition is true. Co-Developed-by: Gwan-gyeong Mun <gwan-gyeong.mun@xxxxxxxxx> Co-Developed-by: Jeungwoo Yoo <casionwoo@xxxxxxxxx> Co-Developed-by: Sangyun Kim <sangyun.kim@xxxxxxxxx> Signed-off-by: Hyunmin Lee <hn.min.lee@xxxxxxxxx> Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@xxxxxxxxx> Signed-off-by: Jeungwoo Yoo <casionwoo@xxxxxxxxx> Signed-off-by: Sangyun Kim <sangyun.kim@xxxxxxxxx> Cc: Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx> --- mm/vmalloc.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 74afa2208558..9f9dba3132c5 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -1587,9 +1587,14 @@ static struct vmap_area *alloc_vmap_area(unsigned long size, int purged = 0; int ret; - BUG_ON(!size); - BUG_ON(offset_in_page(size)); - BUG_ON(!is_power_of_2(align)); + if (WARN_ON(!size)) + return ERR_PTR(-EINVAL); + + if (WARN_ON(offset_in_page(size))) + return ERR_PTR(-EINVAL); + + if (WARN_ON(!is_power_of_2(align))) + return ERR_PTR(-EINVAL); if (unlikely(!vmap_initialized)) return ERR_PTR(-EBUSY); -- 2.25.1
