V4L/DVB (9271): videobuf: data storage optimisation (2)

To optimise data storage even further one other redundant
var has been removed.

This also removes a redundant assignment.

Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Darron Broad <darron@kewl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/cx23885/cx23885-dvb.c

@@ -571,7 +571,7 @@ int cx23885_dvb_register(struct cx23885_tsport *port)
 		port->num_frontends);
 
 	for (i = 1; i <= port->num_frontends; i++) {
-		if (videobuf_dvb_alloc_frontend(dev,
+		if (videobuf_dvb_alloc_frontend(
 			&port->frontends, i) == NULL) {
 			printk(KERN_ERR "%s() failed to alloc\n", __func__);
 			return -ENOMEM;

drivers/media/video/cx88/cx88-mpeg.c

@@ -807,7 +807,7 @@ static int __devinit cx8802_probe(struct pci_dev *pci_dev,
 	printk(KERN_INFO "%s() allocating %d frontend(s)\n", __func__, core->board.num_frontends);
 
 	for (i = 1; i <= core->board.num_frontends; i++) {
-		demod = videobuf_dvb_alloc_frontend(dev, &dev->frontends, i);
+		demod = videobuf_dvb_alloc_frontend(&dev->frontends, i);
 		if(demod == NULL) {
 			printk(KERN_ERR "%s() failed to alloc\n", __func__);
 			err = -ENOMEM;

drivers/media/video/saa7134/saa7134-dvb.c

@@ -958,7 +958,7 @@ static int dvb_init(struct saa7134_dev *dev)
 
 	printk(KERN_INFO "%s() allocating 1 frontend\n", __func__);
 
-	if (videobuf_dvb_alloc_frontend(dev, &dev->frontends, 1) == NULL) {
+	if (videobuf_dvb_alloc_frontend(&dev->frontends, 1) == NULL) {
 		printk(KERN_ERR "%s() failed to alloc\n", __func__);
 		return -ENOMEM;
 	}

drivers/media/video/videobuf-dvb.c

@@ -307,10 +307,8 @@ void videobuf_dvb_unregister_bus(struct videobuf_dvb_frontends *f)
 			dvb_dmx_release(&fe->dvb.demux);
 			dvb_unregister_frontend(fe->dvb.frontend);
 		}
-		if(fe->dvb.frontend) {	/* always allocated, may have been reset */
+		if(fe->dvb.frontend) /* always allocated, may have been reset */
 			dvb_frontend_detach(fe->dvb.frontend);
-			fe->dvb.frontend = NULL;
-		}
 		list_del(list);
 		kfree(fe);
 	}
@@ -360,15 +358,14 @@ int videobuf_dvb_find_frontend(struct videobuf_dvb_frontends *f, struct dvb_fron
 	return ret;
 }
 
-struct videobuf_dvb_frontend * videobuf_dvb_alloc_frontend(void *private, struct videobuf_dvb_frontends *f, int id)
+struct videobuf_dvb_frontend * videobuf_dvb_alloc_frontend(struct videobuf_dvb_frontends *f, int id)
 {
 	struct videobuf_dvb_frontend *fe;
 
 	fe = kzalloc(sizeof(struct videobuf_dvb_frontend),GFP_KERNEL);
 	if (fe == NULL)
 		goto fail_alloc;
 
-	fe->dev = private;
 	fe->id = id;
 	mutex_init(&fe->dvb.lock);
 

include/media/videobuf-dvb.h

@@ -25,7 +25,6 @@ struct videobuf_dvb {
 
 struct videobuf_dvb_frontend {
 	struct list_head felist;
-	void *dev;
 	int id;
 	struct videobuf_dvb dvb;
 };
@@ -57,7 +56,7 @@ int videobuf_dvb_register_adapter(struct videobuf_dvb_frontends *f,
 
 int videobuf_dvb_register_frontend(struct dvb_adapter *adapter, struct videobuf_dvb *dvb);
 
-struct videobuf_dvb_frontend * videobuf_dvb_alloc_frontend(void *private, struct videobuf_dvb_frontends *f, int id);
+struct videobuf_dvb_frontend * videobuf_dvb_alloc_frontend(struct videobuf_dvb_frontends *f, int id);
 
 struct videobuf_dvb_frontend * videobuf_dvb_get_frontend(struct videobuf_dvb_frontends *f, int id);
 int videobuf_dvb_find_frontend(struct videobuf_dvb_frontends *f, struct dvb_frontend *p);