Drivers that fail destroy can cause uverbs to leak uobjects. Drivers are
required to always eventually destroy their ubojects, so trigger a WARN_ON
to detect this driver bug.
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
---
drivers/infiniband/core/rdma_core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/rdma_core.c b/drivers/infiniband/core/rdma_core.c
index 3962da54ffbf47..d2b5417a4d5170 100644
--- a/drivers/infiniband/core/rdma_core.c
+++ b/drivers/infiniband/core/rdma_core.c
@@ -895,8 +895,9 @@ void uverbs_destroy_ufile_hw(struct ib_uverbs_file *ufile,
if (__uverbs_cleanup_ufile(ufile, reason)) {
/*
* No entry was cleaned-up successfully during this
- * iteration
+ * iteration. It is a driver bug to fail destruction.
*/
+ WARN_ON(!list_empty(&ufile->uobjects));
break;
}
--
2.28.0
