[linux-dvb] [DVB] PATCH: Handling failure of dvb_frontend_start in dvb_frontend_open [2.5.69-70]

[Daniele Bellucci <bellucda@tiscali.it> (by way of Daniele Bellucci <bellucda@tiscali.it>)]

This patch applies both to 2.5.69 and to 2.5.70



diff -urN linux-2.5.69-my/drivers/media/dvb/dvb-core/dvb_frontend.c
 linux-2.5.69/drivers/media/dvb/dvb-core/dvb_frontend.c ---
 linux-2.5.69-my/drivers/media/dvb/dvb-core/dvb_frontend.c	2003-06-03
 21:54:32.000000000 +0200 +++
 linux-2.5.69/drivers/media/dvb/dvb-core/dvb_frontend.c	2003-06-03
 22:08:07.000000000 +0200 @@ -20,6 +20,10 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
 USA. * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
+ *
+ * Changes:
+ * 03/06/2003:   handling failure of dvb_frontend_start in dvb_frontend_open
+ *               Daniele Bellucci <bellucda@tiscali.it>.
  */

 #include <linux/sched.h>
@@ -527,20 +531,21 @@


 static
-void dvb_frontend_start (struct dvb_frontend_data *fe)
+pid_t dvb_frontend_start (struct dvb_frontend_data *fe)
 {
+	pid_t dvb_kthread;
 	dprintk ("%s\n", __FUNCTION__);

 	if (fe->thread)
 		dvb_frontend_stop (fe);

 	if (down_interruptible (&fe->sem))
-		return;
+		return -ERESTARTSYS;

 	fe->exit = 0;
 	fe->thread = (void*) ~0;

-	kernel_thread (dvb_frontend_thread, fe, 0);
+	return kernel_thread (dvb_frontend_thread, fe, 0);
 }


@@ -610,6 +615,7 @@
 {
 	struct dvb_device *dvbdev = file->private_data;
 	struct dvb_frontend_data *fe = dvbdev->priv;
+	pid_t dvb_kthread;
 	int ret;

 	dprintk ("%s\n", __FUNCTION__);
@@ -618,12 +624,18 @@
 		return ret;

 	if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
-		dvb_frontend_start (fe);
+		dvb_kthread = dvb_frontend_start (fe);
+		if (dvb_kthread < 0) {
+			ret = dvb_kthread;
+			dvb_generic_release(inode, file);
+			goto out;
+		}
+	}

 		/*  empty event queue */
 		fe->events.eventr = fe->events.eventw;
 	}
-
+out:
 	return ret;
 }



Bros... please apply.

Daniele.




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Daniele Bellucci



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