The RPC/RDMA send_request method and the chunk registration code
expects an errno from the registration function. This allows
the upper layers to distinguish between a recoverable failure
(for example, temporary memory exhaustion) and a hard failure
(for example, a bug in the registration logic).

Signed-off-by: Chuck Lever <[email protected]>
---
 net/sunrpc/xprtrdma/verbs.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 61c4129..6ea2942 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1918,10 +1918,10 @@ rpcrdma_register_external(struct rpcrdma_mr_seg *seg,
                break;
 
        default:
-               return -1;
+               return -EIO;
        }
        if (rc)
-               return -1;
+               return rc;
 
        return nsegs;
 }

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