diff options
| author | Peter Xu <peterx@redhat.com> | 2020-12-14 19:14:05 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-15 12:13:46 -0800 |
| commit | 1e17a24edf9bef891bbdd02617eaab4fa6efcd7f (patch) | |
| tree | cb7d97519d280f7dd7b29cf4fd38ed1f28323382 | |
| parent | 164c50be2878f4caf6d7973e8e0e438f182f4ded (diff) | |
| download | linux-1e17a24edf9bef891bbdd02617eaab4fa6efcd7f.tar.bz2 | |
userfaultfd/selftests: fix retval check for userfaultfd_open()
userfaultfd_open() returns 1 for errors rather than negatives. Fix it on
all the callers so when UFFDIO_API failed the test will bail out.
Link: https://lkml.kernel.org/r/20201208024709.7701-3-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | tools/testing/selftests/vm/userfaultfd.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c index 7fc1eaf4ceaa..6e482e2f198c 100644 --- a/tools/testing/selftests/vm/userfaultfd.c +++ b/tools/testing/selftests/vm/userfaultfd.c @@ -1029,7 +1029,7 @@ static int userfaultfd_zeropage_test(void) if (uffd_test_ops->release_pages(area_dst)) return 1; - if (userfaultfd_open(0) < 0) + if (userfaultfd_open(0)) return 1; uffdio_register.range.start = (unsigned long) area_dst; uffdio_register.range.len = nr_pages * page_size; @@ -1079,7 +1079,7 @@ static int userfaultfd_events_test(void) features = UFFD_FEATURE_EVENT_FORK | UFFD_FEATURE_EVENT_REMAP | UFFD_FEATURE_EVENT_REMOVE; - if (userfaultfd_open(features) < 0) + if (userfaultfd_open(features)) return 1; fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK); @@ -1151,7 +1151,7 @@ static int userfaultfd_sig_test(void) return 1; features = UFFD_FEATURE_EVENT_FORK|UFFD_FEATURE_SIGBUS; - if (userfaultfd_open(features) < 0) + if (userfaultfd_open(features)) return 1; fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK); @@ -1231,7 +1231,7 @@ static int userfaultfd_stress(void) if (!area_dst) return 1; - if (userfaultfd_open(0) < 0) + if (userfaultfd_open(0)) return 1; count_verify = malloc(nr_pages * sizeof(unsigned long long)); |