In function i915_active_acquire_preallocate_barrier(), not all paths have the return value set correctly, and in case of memory allocation failure, a negative error code should be returned.
Cc: Chris Wilson chris@chris-wilson.co.uk Signed-off-by: Tianjia Zhang tianjia.zhang@linux.alibaba.com --- drivers/gpu/drm/i915/i915_active.c | 4 ++-- drivers/gpu/drm/i915/selftests/i915_request.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_active.c b/drivers/gpu/drm/i915/i915_active.c index d960d0be5bd2..cc017e3cc9c5 100644 --- a/drivers/gpu/drm/i915/i915_active.c +++ b/drivers/gpu/drm/i915/i915_active.c @@ -758,7 +758,7 @@ int i915_active_acquire_preallocate_barrier(struct i915_active *ref, intel_engine_mask_t tmp, mask = engine->mask; struct llist_node *first = NULL, *last = NULL; struct intel_gt *gt = engine->gt; - int err; + int err = 0;
GEM_BUG_ON(i915_active_is_idle(ref));
@@ -782,7 +782,7 @@ int i915_active_acquire_preallocate_barrier(struct i915_active *ref, if (!node) { node = kmem_cache_alloc(global.slab_cache, GFP_KERNEL); if (!node) { - err = ENOMEM; + err = -ENOMEM; goto unwind; }
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c index 6014e8dfcbb1..dda801a87b8a 100644 --- a/drivers/gpu/drm/i915/selftests/i915_request.c +++ b/drivers/gpu/drm/i915/selftests/i915_request.c @@ -326,7 +326,7 @@ static int __igt_breadcrumbs_smoketest(void *arg) if (!wait) { i915_sw_fence_commit(submit); heap_fence_put(submit); - err = ENOMEM; + err = -ENOMEM; break; }