summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/sw/rxe/rxe_mr.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_mr.c')
-rw-r--r--drivers/infiniband/sw/rxe/rxe_mr.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_mr.c b/drivers/infiniband/sw/rxe/rxe_mr.c
index d0faca294006..86a6585b847d 100644
--- a/drivers/infiniband/sw/rxe/rxe_mr.c
+++ b/drivers/infiniband/sw/rxe/rxe_mr.c
@@ -59,9 +59,11 @@ int mem_check_range(struct rxe_mem *mem, u64 iova, size_t length)
case RXE_MEM_TYPE_MR:
case RXE_MEM_TYPE_FMR:
- return ((iova < mem->iova) ||
- ((iova + length) > (mem->iova + mem->length))) ?
- -EFAULT : 0;
+ if (iova < mem->iova ||
+ length > mem->length ||
+ iova > mem->iova + mem->length - length)
+ return -EFAULT;
+ return 0;
default:
return -EFAULT;