Don't crash in TCPSlaveBase if the connection is already closed and thus the file descriptor is invalid/null. This seems to be what has been reported in Intevation issue 2442.
Don't crash in TCPSlaveBase if the connection is already closed and thus the file descriptor is invalid/null. This seems to be what has been reported in Intevation issue 2442.

svn path=/branches/kdepim/enterprise/kdepim/; revision=779694

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi