[linux-dvb] [patch] suspend fix #1

[Gerd Knorr <kraxel@bytesex.org>]

  Hi,

The dvb frontend kernel thread doesn't survive a standby/suspend,
the patch below fixes this.

  Gerd

Index: linux-2.6.8/drivers/media/dvb/dvb-core/dvb_frontend.c
===================================================================
--- linux-2.6.8.orig/drivers/media/dvb/dvb-core/dvb_frontend.c	2004-10-08 11:55:36.000000000 +0200
+++ linux-2.6.8/drivers/media/dvb/dvb-core/dvb_frontend.c	2004-10-12 09:29:44.898980496 +0200
@@ -34,6 +34,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/list.h>
+#include <linux/suspend.h>
 #include <asm/processor.h>
 #include <asm/semaphore.h>
 
@@ -489,6 +490,9 @@ static void dvb_frontend_wakeup (struct 
 	wake_up_interruptible(&fe->wait_queue);
 }
 
+/*
+ * FIXME: use linux/kthread.h
+ */
 static int dvb_frontend_thread (void *data)
 {
 	struct dvb_frontend_data *fe = (struct dvb_frontend_data *) data;
@@ -516,10 +520,17 @@ static int dvb_frontend_thread (void *da
 		up (&fe->sem);	    /* is locked when we enter the thread... */
 
 		timeout = wait_event_interruptible_timeout(fe->wait_queue,0 != dvb_frontend_should_wakeup (fe), delay);
-		if (-ERESTARTSYS == timeout || 0 != dvb_frontend_is_exiting (fe)) {
-			/* got signal or quitting */
+#if 0
+		if (-ERESTARTSYS == timeout)
+			/* got signal - FIXME: suspend triggeres this as well */
 			break;
-		}
+#endif
+		if (0 != dvb_frontend_is_exiting (fe))
+			/* quitting */
+			break;
+
+		if (current->flags & PF_FREEZE)
+			refrigerator(PF_FREEZE);
 
 		if (down_interruptible (&fe->sem))
 			break;