From 97d2a1c3c185623c5472e89e78b4d8cc98a06c91 Mon Sep 17 00:00:00 2001
From: Sander Vrijders <sander.vrijders@ugent.be>
Date: Tue, 21 Mar 2017 16:51:15 +0100
Subject: ipcpd: local: Handle failed flow allocation

When the flow_req_arr returned a negative error, it was not handled
correctly in the local IPCP, and an access was made into a table with
a negative integer. This handles it correctly.
---
 src/ipcpd/local/main.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'src/ipcpd/local')

diff --git a/src/ipcpd/local/main.c b/src/ipcpd/local/main.c
index 8d770c94..edb22be6 100644
--- a/src/ipcpd/local/main.c
+++ b/src/ipcpd/local/main.c
@@ -234,13 +234,19 @@ static int ipcp_local_flow_alloc(int       fd,
 
         if (ipcp_get_state() != IPCP_OPERATIONAL) {
                 pthread_rwlock_unlock(&ipcpi.state_lock);
-                log_dbg("Won't register with non-enrolled IPCP.");
+                log_dbg("Won't allocate over non-operational IPCP.");
                 return -1; /* -ENOTENROLLED */
         }
 
         pthread_rwlock_wrlock(&local_data.lock);
 
         out_fd = ipcp_flow_req_arr(getpid(), dst_name, src_ae_name, cube);
+        if (out_fd < 0) {
+                log_dbg("Flow allocation failed.");
+                pthread_rwlock_unlock(&local_data.lock);
+                pthread_rwlock_unlock(&ipcpi.state_lock);
+                return -1;
+        }
 
         local_data.in_out[fd]  = out_fd;
         local_data.in_out[out_fd] = fd;
-- 
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