[PATCH rdma-next 07/12] RDMA/umem: Don't check for negative return value of dma_map_sg_attrs()

[Leon Romanovsky <leon@kernel.org>]

From: Leon Romanovsky <leonro@mellanox.com>

dma_map_sg_attrs() returns 0 on error and can't return negative number
(ensured by BUG_ON), so don't check for being negative value.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
 drivers/infiniband/core/umem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index 54ab6335c48d..498f59bb4989 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -206,7 +206,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
 				  DMA_BIDIRECTIONAL,
 				  dma_attrs);
 
-	if (umem->nmap <= 0) {
+	if (!umem->nmap) {
 		ret = -ENOMEM;
 		goto out;
 	}
-- 
2.14.4