[PATCH] misc: mic: SCIF Fix scif_get_new_port() error handling

[Dan Carpenter]

There are only 2 callers of scif_get_new_port() and both appear to get
the error handling wrong.  Both treat zero returns as error, but it
actually returns negative error codes and >= 0 on success.

Fixes: e9089f43c9a7 ("misc: mic: SCIF open close bind and listen APIs")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
I have not tested this patch.  Please review carefully.

diff --git a/drivers/misc/mic/scif/scif_api.c b/drivers/misc/mic/scif/scif_api.c
index 463f06d0b4ef..8dd0ccedeb94 100644
--- a/drivers/misc/mic/scif/scif_api.c
+++ b/drivers/misc/mic/scif/scif_api.c
@@ -371,11 +371,10 @@ int scif_bind(scif_epd_t epd, u16 pn)
                        goto scif_bind_exit;
                }
        } else {
-               pn = scif_get_new_port();
-               if (!pn) {
-                       ret = -ENOSPC;
+               ret = scif_get_new_port();
+               if (ret < 0)
                        goto scif_bind_exit;
-               }
+               pn = ret;
        }
 
        ep->state = SCIFEP_BOUND;
@@ -649,13 +648,12 @@ int __scif_connect(scif_epd_t epd, struct scif_port_id 
*dst, bool non_block)
                        err = -EISCONN;
                break;
        case SCIFEP_UNBOUND:
-               ep->port.port = scif_get_new_port();
-               if (!ep->port.port) {
-                       err = -ENOSPC;
-               } else {
-                       ep->port.node = scif_info.nodeid;
-                       ep->conn_async_state = ASYNC_CONN_IDLE;
-               }
+               err = scif_get_new_port();
+               if (err < 0)
+                       break;
+               ep->port.port = err;
+               ep->port.node = scif_info.nodeid;
+               ep->conn_async_state = ASYNC_CONN_IDLE;
                /* Fall through */
        case SCIFEP_BOUND:
                /*