[lnst] ConnectionHandler: add handling of select exceptions

[Jiří Pírko]

commit 95e770593cd247d1ce284871262d00b82ffe5a48
Author: Ondrej Lichtner <olichtne(a)redhat.com&gt;
Date:   Fri Jul 26 12:59:45 2013 +0200

    ConnectionHandler: add handling of select exceptions
    
    When slave was in a select call and a keyboard interrupt was recieved it
    cased the slave to crash with an exception. This commit fixes that.
    
    Signed-off-by: Ondrej Lichtner <olichtne(a)redhat.com&gt;
    Signed-off-by: Jiri Pirko <jiri(a)resnulli.us&gt;

 lnst/Common/ConnectionHandler.py |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/lnst/Common/ConnectionHandler.py b/lnst/Common/ConnectionHandler.py
index 8e9e548..80a9538 100644
--- a/lnst/Common/ConnectionHandler.py
+++ b/lnst/Common/ConnectionHandler.py
@@ -67,7 +67,10 @@ class ConnectionHandler(object):
 
     def check_connections(self):
         requests = []
-        rl, wl, xl = select.select(self._connections.values(), [], [])
+        try:
+            rl, wl, xl = select.select(self._connections.values(), [], [])
+        except select.error:
+            return []
         for f in rl:
             try:
                 data = recv_data(f)