diff options
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_mr.c')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_mr.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_mr.c b/drivers/infiniband/sw/rxe/rxe_mr.c index c80458634962..5e9a03831bf9 100644 --- a/drivers/infiniband/sw/rxe/rxe_mr.c +++ b/drivers/infiniband/sw/rxe/rxe_mr.c @@ -314,6 +314,9 @@ int rxe_mr_copy(struct rxe_mr *mr, u64 iova, void *addr, if (length == 0) return 0; + if (WARN_ON(!mr)) + return -EINVAL; + if (mr->ibmr.type == IB_MR_TYPE_DMA) { rxe_mr_copy_dma(mr, iova, addr, length, dir); return 0; @@ -432,6 +435,10 @@ int rxe_flush_pmem_iova(struct rxe_mr *mr, u64 iova, unsigned int length) int err; u8 *va; + /* mr must be valid even if length is zero */ + if (WARN_ON(!mr)) + return -EINVAL; + if (length == 0) return 0; |