On Tue, Jul 12, 2022 at 01:50:36AM +0000, Liam Howlett wrote: > When the possibilities of finding a gap are exhausted at the root node, > the error code was not returned which results in returning a range that > is currently occupied. Add the necessary check for the error code and > return to the caller. > > Reported-by: Alexander Gordeev <agordeev@xxxxxxxxxxxxx> > Fixes: d0aac5e48048 (Maple Tree: add new data structure) > Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx> > --- > lib/maple_tree.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/lib/maple_tree.c b/lib/maple_tree.c > index 9dc4ffff18d0..14e9ab14c1da 100644 > --- a/lib/maple_tree.c > +++ b/lib/maple_tree.c > @@ -5287,6 +5287,9 @@ int mas_empty_area_rev(struct ma_state *mas, unsigned long min, > } > } > > + if (mas_is_err(mas)) > + return xa_err(mas->node); > + > if (unlikely(mas->offset == MAPLE_NODE_SLOTS)) > return -EBUSY; Tested-by: Alexander Gordeev <agordeev@xxxxxxxxxxxxx> Thanks!
