drm/i915: unpin on error in intel_vgpu_shadow_mm_pin()

[ Upstream commit 3792fc508c095abd84b10ceae12bd773e61fdc36 ]

Call intel_vgpu_unpin_mm() on this error path.

Fixes: fbf4548f0a56 ("drm/i915/gvt: Adding ppgtt to GVT GEM context after shadow pdps settled.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/Y3OQ5tgZIVxyQ/WV@kili
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c
index 058dcd54164400152ee1b3ac12bebb656213fed7..c1dc225d84361e7ae7fadab333f8eab0daa3fafc 100644 (file)
--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -632,6 +632,7 @@ static int prepare_workload(struct intel_vgpu_workload *workload)
 
        if (workload->shadow_mm->type != INTEL_GVT_MM_PPGTT ||
            !workload->shadow_mm->ppgtt_mm.shadowed) {
+               intel_vgpu_unpin_mm(workload->shadow_mm);
                gvt_vgpu_err("workload shadow ppgtt isn't ready\n");
                return -EINVAL;
        }