drm/i915/gt: Prevent use of engine->wa_ctx after error

[linux-2.6-microblaze.git] / drivers / gpu / drm / i915 / gt / intel_lrc.c

diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 7614a3d..26c7d0a 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -3988,6 +3988,9 @@ err:
 static void lrc_destroy_wa_ctx(struct intel_engine_cs *engine)
 {
        i915_vma_unpin_and_release(&engine->wa_ctx.vma, 0);
+
+       /* Called on error unwind, clear all flags to prevent further use */
+       memset(&engine->wa_ctx, 0, sizeof(engine->wa_ctx));
 }
 
 typedef u32 *(*wa_bb_func_t)(struct intel_engine_cs *engine, u32 *batch);