[PATCH] drm/i915/gt: fix unsigned integer to signed assignment

[Jiapeng Chong]

Eliminate the follow smatch warning:

drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c:4640
guc_create_virtual() warn: assigning (-2) to unsigned variable
've->base.instance'.

drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c:4641
guc_create_virtual() warn: assigning (-2) to unsigned variable
've->base.uabi_instance'.

Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx>
Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/gt/intel_engine_types.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index 36365bdbe1ee..dc7cc06c68e7 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -328,10 +328,10 @@ struct intel_engine_cs {
 	intel_engine_mask_t logical_mask;
 
 	u8 class;
-	u8 instance;
+	s8 instance;
 
 	u16 uabi_class;
-	u16 uabi_instance;
+	s16 uabi_instance;
 
 	u32 uabi_capabilities;
 	u32 context_size;
-- 
2.20.1.7.g153144c