diff options
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_mr.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_mr.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_mr.c b/drivers/infiniband/hw/ipath/ipath_mr.c index 30936769ab3a..4ac31a5da330 100644 --- a/drivers/infiniband/hw/ipath/ipath_mr.c +++ b/drivers/infiniband/hw/ipath/ipath_mr.c @@ -170,6 +170,11 @@ struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, int n, m, i; struct ib_mr *ret; + if (region->length == 0) { + ret = ERR_PTR(-EINVAL); + goto bail; + } + n = 0; list_for_each_entry(chunk, ®ion->chunk_list, list) n += chunk->nents; |