diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
index 9b5db16b26193..95f1c7198dd3f 100644
--- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
+++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
@@ -2962,9 +2962,7 @@ static inline void dmub_rb_flush_pending(const struct dmub_rb *rb)
 	uint32_t wptr = rb->wrpt;
 
 	while (rptr != wptr) {
-		uint64_t volatile *data = (uint64_t volatile *)((uint8_t *)(rb->base_address) + rptr);
-		//uint64_t volatile *p = (uint64_t volatile *)data;
-		uint64_t temp;
+		uint64_t *data = (uint64_t *)((uint8_t *)(rb->base_address) + rptr);
 		uint8_t i;
 
 		/* Don't remove this.
@@ -2972,7 +2970,7 @@ static inline void dmub_rb_flush_pending(const struct dmub_rb *rb)
 		 * for this function to be effective.
 		 */
 		for (i = 0; i < DMUB_RB_CMD_SIZE / sizeof(uint64_t); i++)
-			temp = *data++;
+			(void)READ_ONCE(*data++);
 
 		rptr += DMUB_RB_CMD_SIZE;
 		if (rptr >= rb->capacity)