LU-5990 lnet: fix for lnet_prepare failure handling

lnet_prepare() should return errno on failure

Signed-off-by: Liang Zhen <liang.zhen@intel.com>
Change-Id: Ie86b4ba71550628e293352d8bff4d17af80e8e05
Reviewed-on: http://review.whamcloud.com/12973
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Isaac Huang <he.huang@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>

diff --git a/lnet/lnet/api-ni.c b/lnet/lnet/api-ni.c
index ae10aa8..fefeb69 100644 (file)
--- a/lnet/lnet/api-ni.c
+++ b/lnet/lnet/api-ni.c
@@ -728,26 +728,25 @@ lnet_prepare(lnet_pid_t requested_pid)
                return -ENETDOWN;
        }
 
-        LASSERT (the_lnet.ln_refcount == 0);
+       LASSERT(the_lnet.ln_refcount == 0);
 
-        the_lnet.ln_routing = 0;
+       the_lnet.ln_routing = 0;
 
 #ifdef __KERNEL__
-        LASSERT ((requested_pid & LNET_PID_USERFLAG) == 0);
-        the_lnet.ln_pid = requested_pid;
+       LASSERT((requested_pid & LNET_PID_USERFLAG) == 0);
+       the_lnet.ln_pid = requested_pid;
 #else
-        if (the_lnet.ln_server_mode_flag) {/* server case (uOSS) */
+       if (the_lnet.ln_server_mode_flag) {/* server case (uOSS) */
                LASSERT ((requested_pid & LNET_PID_USERFLAG) == 0);
-
-               if (current_uid() != 0) /* Only root can run user-space server */
+               /* Only root can run user-space server */
+               if (current_uid() != 0)
                        return -EPERM;
                the_lnet.ln_pid = requested_pid;
 
-        } else {/* client case (liblustre) */
-
-                /* My PID must be unique on this node and flag I'm userspace */
-                the_lnet.ln_pid = getpid() | LNET_PID_USERFLAG;
-        }
+       } else {/* client case (liblustre) */
+               /* My PID must be unique on this node and flag I'm userspace */
+               the_lnet.ln_pid = getpid() | LNET_PID_USERFLAG;
+       }
 #endif
 
        INIT_LIST_HEAD(&the_lnet.ln_test_peers);
@@ -788,15 +787,19 @@ lnet_prepare(lnet_pid_t requested_pid)
 
        recs = lnet_res_containers_create(LNET_COOKIE_TYPE_ME, LNET_FL_MAX_MES,
                                          sizeof(lnet_me_t));
-       if (recs == NULL)
+       if (recs == NULL) {
+               rc = -ENOMEM;
                goto failed;
+       }
 
        the_lnet.ln_me_containers = recs;
 
        recs = lnet_res_containers_create(LNET_COOKIE_TYPE_MD, LNET_FL_MAX_MDS,
                                          sizeof(lnet_libmd_t));
-       if (recs == NULL)
+       if (recs == NULL) {
+               rc = -ENOMEM;
                goto failed;
+       }
 
        the_lnet.ln_md_containers = recs;