[PATCH rc] iommufd/selftest: Fix ioctl return value in _test_cmd_trigger_vevents()

[Nicolin Chen]

The ioctl returns 0 upon success, so !0 returning -1 breaks the selftest.

Drop the '!' to fix it.

Fixes: 1d235d849425 ("iommu/selftest: prevent use of uninitialized variable")
Signed-off-by: Nicolin Chen <nicol...@nvidia.com>
---
 tools/testing/selftests/iommu/iommufd_utils.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/iommu/iommufd_utils.h 
b/tools/testing/selftests/iommu/iommufd_utils.h
index 772ca1db6e597..9f472c20c1905 100644
--- a/tools/testing/selftests/iommu/iommufd_utils.h
+++ b/tools/testing/selftests/iommu/iommufd_utils.h
@@ -1044,8 +1044,8 @@ static int _test_cmd_trigger_vevents(int fd, __u32 
dev_id, __u32 nvevents)
        };
 
        while (nvevents--) {
-               if (!ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_TRIGGER_VEVENT),
-                           &trigger_vevent_cmd))
+               if (ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_TRIGGER_VEVENT),
+                         &trigger_vevent_cmd))
                        return -1;
        }
        return 0;
-- 
2.43.0