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    Subject[PATCH 4.9 47/66] drm/i915: Clear ret before unbinding in i915_gem_evict_something()
    Date
    4.9-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Chris Wilson <chris@chris-wilson.co.uk>

    commit e88893fea17996018b2d68a22e677ea04f3baadf upstream.

    Missed when rebasing patches, I failed to set ret to zero before
    starting the unbind loop (which depends upon ret being zero).

    Reported-by: Matthew Auld <matthew.william.auld@gmail.com>
    Fixes: 9332f3b1b99a ("drm/i915: Combine loops within i915_gem_evict_something")
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
    Cc: Matthew Auld <matthew.william.auld@gmail.com>
    Link: http://patchwork.freedesktop.org/patch/msgid/20170105155940.10033-1-chris@chris-wilson.co.uk
    Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com>
    (cherry picked from commit 121dfbb2a2ef1c5f49e15c38ccc47ff0beb59446)
    Signed-off-by: Jani Nikula <jani.nikula@intel.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/gpu/drm/i915/i915_gem_evict.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/drivers/gpu/drm/i915/i915_gem_evict.c
    +++ b/drivers/gpu/drm/i915/i915_gem_evict.c
    @@ -194,6 +194,7 @@ found:
    }

    /* Unbinding will emit any required flushes */
    + ret = 0;
    while (!list_empty(&eviction_list)) {
    vma = list_first_entry(&eviction_list,
    struct i915_vma,

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