Revert last commit, it affect via things

linux-core/drm_os_linux.h

@@ -5,7 +5,6 @@
 
 #include <linux/interrupt.h>	/* For task queue support */
 #include <linux/delay.h>
-#include <linux/wait.h>
 
 /** File pointer type */
 #define DRMFILE                         struct file *
@@ -146,12 +145,26 @@ do { 									 \
 
 #define DRM_WAIT_ON( ret, queue, timeout, condition )		\
 do {								\
-	long __ret;     \
-	__ret = wait_event_interruptible_timeout(queue, condition, timeout); \
-	if (__ret == 0) \
+	DECLARE_WAITQUEUE(entry, current);			\
+	unsigned long end = jiffies + (timeout);		\
+	add_wait_queue(&(queue), &entry);			\
+								\
+	for (;;) {						\
+		__set_current_state(TASK_INTERRUPTIBLE);	\
+		if (condition)					\
+			break;					\
+		if (time_after_eq(jiffies, end)) {		\
 			ret = -EBUSY;				\
-	else if (__ret == -ERESTARTSYS) \
+			break;					\
+		}						\
+		schedule_timeout((HZ/100 > 1) ? HZ/100 : 1);	\
+		if (signal_pending(current)) {			\
 			ret = -EINTR;				\
+			break;					\
+		}						\
+	}							\
+	__set_current_state(TASK_RUNNING);			\
+	remove_wait_queue(&(queue), &entry);			\
 } while (0)
 
 #define DRM_WAKEUP( queue ) wake_up_interruptible( queue )