[Bug other/67392] New: Invalid mmap return value check

[tobias at stoeckmann dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67392

            Bug ID: 67392
           Summary: Invalid mmap return value check
           Product: gcc
           Version: 5.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tobias at stoeckmann dot org
  Target Milestone: ---

Created attachment 36268
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36268&action=edit
check for MAP_FAILED instead of NULL

If mmap() fails, MAP_FAILED will be returned. The code checks for NULL though,
the error return value of malloc() and basically every other function out
there.