helper: improve is_error_return(). In the kernel all negatives are errors
commit46feafde156c791016aa10b411d34b5794c6238a
authorDan Carpenter <dan.carpenter@oracle.com>
Mon, 9 Apr 2018 11:42:42 +0000 (9 14:42 +0300)
committerDan Carpenter <dan.carpenter@oracle.com>
Mon, 9 Apr 2018 11:42:42 +0000 (9 14:42 +0300)
treeaf8fcfb934b755396c41386eabcddc02d41a9dfe
parenta592e1f3db11aeb2e3a5f958abf86d7a57849d53
helper: improve is_error_return().  In the kernel all negatives are errors

This is not really true, but what the heck, let's take a range_list and
if it's, for example, s32min-(-1) then let's treat it as an error return.

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