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668d4bd0c118
2020 Apr 15
0
[PATCH AUTOSEL 5.4 48/84] drm/nouveau/svm: check for SVM initialized before migrating
...gt;
Signed-off-by: Ben Skeggs <bskeggs at redhat.com>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
drivers/gpu/drm/nouveau/nouveau_svm.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/nouveau_svm.c b/drivers/gpu/drm/nouveau/nouveau_svm.c
index 668d4bd0c118f..25b7055949c45 100644
--- a/drivers/gpu/drm/nouveau/nouveau_svm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_svm.c
@@ -173,6 +173,11 @@ nouveau_svmm_bind(struct drm_device *dev, void *data,
mm = get_task_mm(current);
down_read(&mm->mmap_sem);
+ if (!cli->svm.svmm) {
+ up_read(&mm-&g...