ranges: fix "trouble parsing empty" messages
commit35feb52e04b021a7b94fc491e38d4452cedc2fc6
authorDan Carpenter <dan.carpenter@oracle.com>
Mon, 18 Feb 2013 07:42:06 +0000 (18 10:42 +0300)
committerDan Carpenter <dan.carpenter@oracle.com>
Mon, 18 Feb 2013 07:42:06 +0000 (18 10:42 +0300)
tree1d35471eef910e2f76dce4cdf6305b61c7750ddf
parenta1950fd9dfd8ee61dfe41c0dab95adf0c5fee938
ranges: fix "trouble parsing empty" messages

In olden times "empty" states represented an impossible condition so they
maybe meant something had gone wrong.  But these days, if they come from
param_filter then they can mean that a variable is cleared on the return
path.  Which is totally valid.

We should just parse them and don't complain.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch_ranges.c