From 5639fce1322dd8ae1398f8a7f530197484fc1f9e Mon Sep 17 00:00:00 2001

From: Shay Drory <shayd@mellanox.com>

Date: Mon, 7 Oct 2019 12:09:05 +0300

Subject: [PATCH rdma-core 06/13] verbs: Set missing errno in ibv_cmd_reg_mr

[ Upstream commit f9e127a4bffa09ee72fc0ce92228296a4d1c1588 ]

Set missing errno in ibv_cmd_reg_mr() when implicit MR is used.

Fixes: d4021e743fda7 ("verbs: Fix implicit ODP MR support for 32 bit

systems")

Signed-off-by: Shay Drory <shayd@mellanox.com>

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>

Signed-off-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>

---

 libibverbs/cmd.c | 4 +++-

 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libibverbs/cmd.c b/libibverbs/cmd.c

index 3936e69b..26eaa479 100644

--- a/libibverbs/cmd.c

+++ b/libibverbs/cmd.c

@@ -340,8 +340,10 @@ int ibv_cmd_reg_mr(struct ibv_pd *pd, void *addr, size_t length,

 	 * In that case set the value in the command to what kernel expects.

 	 */

 	if (access & IBV_ACCESS_ON_DEMAND) {

-		if (length == SIZE_MAX && addr)

+		if (length == SIZE_MAX && addr) {

+			errno = EINVAL;

 			return EINVAL;

+		}

 		if (length == SIZE_MAX)

 			cmd->length = UINT64_MAX;

 	}

-- 

2.20.1