On Fri, Dec 21, 2018 at 10:19:38AM +0800, YueHaibing wrote: > It should goto err handle if qib_user_sdma_rb_insert fails, > other than success return. > > Fixes: 67810e8c3c01 ("RDMA/qib: Remove all occurrences of BUG_ON()") > Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx> > --- > drivers/infiniband/hw/qib/qib_user_sdma.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/infiniband/hw/qib/qib_user_sdma.c b/drivers/infiniband/hw/qib/qib_user_sdma.c > index 31c523b..e87c0a7 100644 > --- a/drivers/infiniband/hw/qib/qib_user_sdma.c > +++ b/drivers/infiniband/hw/qib/qib_user_sdma.c > @@ -237,6 +237,8 @@ qib_user_sdma_queue_create(struct device *dev, int unit, int ctxt, int sctxt) > > ret = qib_user_sdma_rb_insert(&qib_user_sdma_rb_root, > sdma_rb_node); > + if (ret == 0) > + goto err_rb; > } This doesn't look right, what about undoing the kmalloc directly above? Jason