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From 01305ccefde92b746ae8eeeba1ce0901fc13029b Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 16 Nov 2021 14:49:16 +0300
Subject: drm/i915/guc: fix NULL vs IS_ERR() checking
Git-commit: 8b2abf777d8ea8d8db15af553454e0e976804225
Patch-mainline: v5.16-rc2
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Alt-commit: fe69a2dd88b2c741bd55336d74dd484d7b848679
Alt-commit: fc12b70d12d07598cde27cc17dbfafc2a2a33ff8

The intel_engine_create_virtual() function does not return NULL.  It
returns error pointers.

Fixes: e5e32171a2cf ("drm/i915/guc: Connect UAPI to GuC multi-lrc interface")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211116114916.GB11936@kili
(cherry picked from commit fc12b70d12d07598cde27cc17dbfafc2a2a33ff8)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index 38b47e73e35d..c48557dfa04c 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -3080,8 +3080,8 @@ guc_create_parallel(struct intel_engine_cs **engines,
 
 		ce = intel_engine_create_virtual(siblings, num_siblings,
 						 FORCE_VIRTUAL);
-		if (!ce) {
-			err = ERR_PTR(-ENOMEM);
+		if (IS_ERR(ce)) {
+			err = ERR_CAST(ce);
 			goto unwind;
 		}
 
-- 
2.38.1