on 1/2/2024 7:20 PM, yangerkun wrote: > The return value for __mb_check_buddy should be a integer. Found this by > code review. > Hi yangerkun, I think the return value of __mb_check_buddy is actually not used and can be removed. See [1] for details :). Thanks! [1] https://lore.kernel.org/lkml/20231125161143.3945726-2-shikemeng@xxxxxxxxxxxxxxx/ > Fixes: 5354b2af3406 ("ext4: allow ext4_get_group_info() to fail") > Signed-off-by: yangerkun <yangerkun@xxxxxxxxxx> > --- > fs/ext4/mballoc.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c > index d72b5e3c92ec..55c70a1b445a 100644 > --- a/fs/ext4/mballoc.c > +++ b/fs/ext4/mballoc.c > @@ -758,7 +758,7 @@ static int __mb_check_buddy(struct ext4_buddy *e4b, char *file, > > grp = ext4_get_group_info(sb, e4b->bd_group); > if (!grp) > - return NULL; > + return 0; > list_for_each(cur, &grp->bb_prealloc_list) { > ext4_group_t groupnr; > struct ext4_prealloc_space *pa; >