[PATCH 5/6] nouveau: return -EBUSY when hmm_range_wait_until_valid fails

Christoph Hellwig
2019-07-03T22:02:36Z

-EAGAIN has a magic meaning for non-blocking faults, so don't overload
it. Given that the caller doesn't check for specific error codes this
change is purely cosmetic.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/gpu/drm/nouveau/nouveau_svm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_svm.c b/drivers/gpu/drm/nouveau/nouveau_svm.c
index d97d862e8b7d..26853f59b0f4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_svm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_svm.c
@@ -508,7 +508,7 @@ nouveau_range_fault(struct hmm_mirror *mirror, struct hmm_range *range)

if (!hmm_range_wait_until_valid(range, NOUVEAU_RANGE_FAULT_TIMEOUT)) {
up_read(&range->vma->vm_mm->mmap_sem);
- return -EAGAIN;
+ return -EBUSY;
}

ret = hmm_range_fault(range, true);
--
2.20.1