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drm/i915: Fix wrong return value

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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>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200802115655.25568-1-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Tianjia Zhang
2020-08-02 12:56:55 +01:00
committed by Rodrigo Vivi
parent ecb40d0826
commit e714977eef
2 changed files with 3 additions and 6 deletions
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7
drivers/gpu/drm/i915/i915_active.c
View File

@@ -758,7 +758,6 @@ 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;
GEM_BUG_ON(i915_active_is_idle(ref));
@@ -781,10 +780,8 @@ int i915_active_acquire_preallocate_barrier(struct i915_active *ref,
node = reuse_idle_barrier(ref, idx);
if (!node) {
node = kmem_cache_alloc(global.slab_cache, GFP_KERNEL);
if (!node) {
err = ENOMEM;
if (!node)
goto unwind;
}
RCU_INIT_POINTER(node->base.fence, NULL);
node->base.cb.func = node_retire;
@@ -832,7 +829,7 @@ int i915_active_acquire_preallocate_barrier(struct i915_active *ref,
kmem_cache_free(global.slab_cache, node);
}
return err;
return -ENOMEM;
}
void i915_active_acquire_barrier(struct i915_active *ref)

2
drivers/gpu/drm/i915/selftests/i915_request.c
View File

@@ -331,7 +331,7 @@ static int __igt_breadcrumbs_smoketest(void *arg)
if (!wait) {
i915_sw_fence_commit(submit);
heap_fence_put(submit);
err = ENOMEM;
err = -ENOMEM;
break;
}