From 3a2e791c9456aab38a727b2b2558c08210f59f03 Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Sun, 24 Jun 2018 11:23:48 +0300 Subject: [PATCH] RDMA/umem: Don't check for a negative return value of dma_map_sg_attrs() dma_map_sg_attrs() returns 0 on error and can't return a negative number (ensured by BUG_ON), so don't check. Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- 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 54ab633..498f59b 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; } -- 2.7.4