[PATCH 3/6] drm/gpu/xe: Ignore dma_fenc_signal() return code

[Philipp Stanner]

The return code of dma_fence_signal() is not really useful as there is
nothing reasonable to do if a fence was already signaled. That return
code shall be removed from the kernel.

Ignore dma_fence_signal()'s return code.

Suggested-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Philipp Stanner <phasta@xxxxxxxxxx>
---
 drivers/gpu/drm/xe/xe_hw_fence.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_hw_fence.c b/drivers/gpu/drm/xe/xe_hw_fence.c
index b2a0c46dfcd4..959b30dde724 100644
--- a/drivers/gpu/drm/xe/xe_hw_fence.c
+++ b/drivers/gpu/drm/xe/xe_hw_fence.c
@@ -85,7 +85,6 @@ void xe_hw_fence_irq_finish(struct xe_hw_fence_irq *irq)
 {
 	struct xe_hw_fence *fence, *next;
 	unsigned long flags;
-	int err;
 	bool tmp;
 
 	if (XE_WARN_ON(!list_empty(&irq->pending))) {
@@ -93,9 +92,9 @@ void xe_hw_fence_irq_finish(struct xe_hw_fence_irq *irq)
 		spin_lock_irqsave(&irq->lock, flags);
 		list_for_each_entry_safe(fence, next, &irq->pending, irq_link) {
 			list_del_init(&fence->irq_link);
-			err = dma_fence_signal_locked(&fence->dma);
+			XE_WARN_ON(dma_fence_test_signaled_flag(&fence->dma));
+			dma_fence_signal_locked(&fence->dma);
 			dma_fence_put(&fence->dma);
-			XE_WARN_ON(err);
 		}
 		spin_unlock_irqrestore(&irq->lock, flags);
 		dma_fence_end_signalling(tmp);
-- 
2.49.0