tree 476198dccf63ead3c26d49ce496c429e24d4a0bf
parent 2bf3a09ea51f807d78d48d0ebc591b9e1502a743
author Tilman Schmidt <tilman@imap.cc> 1413027990 +0200
committer David S. Miller <davem@davemloft.net> 1413313535 -0400

isdn/capi: don't return NULL from capi_cmd2str()

capi_cmd2str() is used in many places to build log messages.
None of them is prepared to handle NULL as a result.
Change the function to return printable string "INVALID_COMMAND"
instead.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>