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authorChristoph Hellwig <hch@lst.de>2019-07-24 08:52:56 +0200
committerJason Gunthorpe <jgg@mellanox.com>2019-07-25 21:14:40 +0200
commit1b88b99bdff85e75df1cfaa418ed2ef8e1bffeb2 (patch)
tree3ea08d356a086221e9055172db5509aca0b19e69 /drivers/gpu/drm/nouveau/nouveau_svm.c
parentnouveau: unlock mmap_sem on all errors from nouveau_range_fault (diff)
downloadlinux-1b88b99bdff85e75df1cfaa418ed2ef8e1bffeb2.tar.xz
linux-1b88b99bdff85e75df1cfaa418ed2ef8e1bffeb2.zip
nouveau: return -EBUSY when hmm_range_wait_until_valid fails
-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. Link: https://lore.kernel.org/r/20190724065258.16603-6-hch@lst.de Tested-by: Ralph Campbell <rcampbell@nvidia.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_svm.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_svm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_svm.c b/drivers/gpu/drm/nouveau/nouveau_svm.c
index a835cebb6d90..545100f7c594 100644
--- a/drivers/gpu/drm/nouveau/nouveau_svm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_svm.c
@@ -502,7 +502,7 @@ nouveau_range_fault(struct hmm_mirror *mirror, struct hmm_range *range)
if (!hmm_range_wait_until_valid(range, HMM_RANGE_DEFAULT_TIMEOUT)) {
up_read(&range->vma->vm_mm->mmap_sem);
- return -EAGAIN;
+ return -EBUSY;
}
ret = hmm_range_fault(range, true);