mm/tunable: fix unexpected error log in min_free_kbytes

when overcommit_memory=0, mmap() will be destroyed in two below scenario:
 1) MAP_FAILED with ENOMEM,
 2) oom_killer kill it.
without the patch, it just catched oom_killer scenario,
the patch fixed it.

Signed-off-by: Zhouping Liu <zliu@redhat.com>
1 file changed