Re: [PATCH v4 1/7] drm/i915: Correctly handle error path in i915_gem_init_hw

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On 3/23/2018 8:44 PM, Michal Wajdeczko wrote:
In function gem_init_hw() we are calling uc_init_hw() but in case
of error later in function, we missed to call matching uc_fini_hw()

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Looks good.
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
---
  drivers/gpu/drm/i915/i915_gem.c | 6 ++++++
  1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 802df8e..7fad180 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -5171,9 +5171,15 @@ int i915_gem_init_hw(struct drm_i915_private *dev_priv)
/* Only when the HW is re-initialised, can we replay the requests */
  	ret = __i915_gem_restart_engines(dev_priv);
+	if (ret)
+		goto cleanup_uc;
  out:
  	intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
  	return ret;
+
+cleanup_uc:
+	intel_uc_fini_hw(dev_priv);
+	goto out;
  }
static int __intel_engines_record_defaults(struct drm_i915_private *i915)

--
Thanks,
Sagar

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