[PATCH 3/4] drm/i915/guc: Inject probe errors for MMIO send

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Injecting probe errors -ENXIO for MMIO send.

Signed-off-by: Thanneeru Srinivasulu <thanneeru.srinivasulu@xxxxxxxxx>
---
 drivers/gpu/drm/i915/gt/uc/intel_guc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index 8f8182bf7c11..490d66712afc 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -403,6 +403,10 @@ int intel_guc_send_mmio(struct intel_guc *guc, const u32 *request, u32 len,
 	int i;
 	int ret;
 
+	ret = i915_inject_probe_error(i915, -ENXIO);
+	if (ret)
+		return ret;
+
 	GEM_BUG_ON(!len);
 	GEM_BUG_ON(len > guc->send_regs.count);
 
-- 
2.25.1




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