[PATCH v2 1/2] drm/i915/selftests: Do not overwrite error code after intel_context_migrate_clear() call

[Krzysztof Karas]

Currently this function's error code is stored in err variable,
which, if a i915_request is present, will be immediately
overwritten by return from dma_resv_reserve_fences(). Call DMA
functions only if intel_context_migrate_clear() succeeded.

Suggested-by: Matthew Auld <matthew.a...@intel.com>
Signed-off-by: Krzysztof Karas <krzysztof.ka...@intel.com>
---
 drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c 
b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
index 9c3f17e51885..c94b71a963b2 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
@@ -1228,7 +1228,7 @@ static int __igt_mmap_migrate(struct intel_memory_region 
**placements,
                                          i915_gem_object_is_lmem(obj),
                                          expand32(POISON_INUSE), &rq);
        i915_gem_object_unpin_pages(obj);
-       if (rq) {
+       if (rq && !err) {
                err = dma_resv_reserve_fences(obj->base.resv, 1);
                if (!err)
                        dma_resv_add_fence(obj->base.resv, &rq->fence,
-- 
2.43.0