From 5bde5a4572e122a68406ddb1d0798988cf9c2b0e Mon Sep 17 00:00:00 2001
From: Michal Wajdeczko <michal.wajdeczko@intel.com>
Date: Sat, 17 Aug 2019 13:11:42 +0000
Subject: drm/i915/uc: Cleanup fw fetch only if it was successful
Git-commit: 5bde5a4572e122a68406ddb1d0798988cf9c2b0e
Patch-mainline: v5.4-rc1
References: bsc#1152489

We can rely on firmware status AVAILABLE to determine if any
firmware cleanup is required. Also don't unconditionally reset
fw status to SELECTED as we will loose MISSING/ERROR codes.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190817131144.26884-2-michal.wajdeczko@intel.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
index 890ae6b4a3d0..527de1fd9d78 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c
@@ -559,18 +559,16 @@ void intel_uc_fw_fini(struct intel_uc_fw *uc_fw)
 
 /**
  * intel_uc_fw_cleanup_fetch - cleanup uC firmware
- *
  * @uc_fw: uC firmware
  *
  * Cleans up uC firmware by releasing the firmware GEM obj.
  */
 void intel_uc_fw_cleanup_fetch(struct intel_uc_fw *uc_fw)
 {
-	struct drm_i915_gem_object *obj;
+	if (!intel_uc_fw_is_available(uc_fw))
+		return;
 
-	obj = fetch_and_zero(&uc_fw->obj);
-	if (obj)
-		i915_gem_object_put(obj);
+	i915_gem_object_put(fetch_and_zero(&uc_fw->obj));
 
 	intel_uc_fw_change_status(uc_fw, INTEL_UC_FIRMWARE_SELECTED);
 }
-- 
2.28.0