[PATCH 1/2] drm/i915: Initialize return value for empty i915_gem_object_unbind()

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If the obj->vma_list is empty, we immediately return ret. However, we
are doing so having never set it to any value, it should be zero!

Reported-by: Matthew Auld <matthew.auld@xxxxxxxxx>
References: https://bugs.freedesktop.org/show_bug.cgi?id=97343
Fixes: aa653a685d81 ("drm/i915: Be more careful when unbinding vma")
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Matthew Auld <matthew.auld@xxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_gem.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 00c114839ca9..53942d760bdc 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -279,12 +279,11 @@ static const struct drm_i915_gem_object_ops i915_gem_phys_ops = {
 	.release = i915_gem_object_release_phys,
 };
 
-int
-i915_gem_object_unbind(struct drm_i915_gem_object *obj)
+int i915_gem_object_unbind(struct drm_i915_gem_object *obj)
 {
 	struct i915_vma *vma;
 	LIST_HEAD(still_in_list);
-	int ret;
+	int ret = 0;
 
 	/* The vma will only be freed if it is marked as closed, and if we wait
 	 * upon rendering to the vma, we may unbind anything in the list.
-- 
2.8.1

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