V4L/DVB (3313): FIX: Check if FW was downloaded or not + new firmware file

- When a firmware was downloaded dvb_usb_device_init returns NULL for the
  dvb_usb_device, then nothing should be done with that pointer and device,
  because it will re-enumerate.
- A new firmware should be used with digitv devices. 
- It should make "slave"-devices work and others, too.

Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 8 insertions, 5 deletions

diff --git a/drivers/media/dvb/dvb-usb/digitv.c b/drivers/media/dvb/dvb-usb/digitv.c
index e6c55c9c9417..caa1346e3063 100644
--- a/drivers/media/dvb/dvb-usb/digitv.c
+++ b/drivers/media/dvb/dvb-usb/digitv.c
@@ -175,11 +175,13 @@ static int digitv_probe(struct usb_interface *intf,
         if ((ret = dvb_usb_device_init(intf,&digitv_properties,THIS_MODULE,&d)) == 0) {
                 u8 b[4] = { 0 };
 
-                b[0] = 1;
-                digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0);
+                if (d != NULL) { /* do that only when the firmware is loaded */
+                        b[0] = 1;
+                        digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0);
 
-                b[0] = 0;
-                digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0);
+                        b[0] = 0;
+                        digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0);
+                }
         }
         return ret;
 }
@@ -194,7 +196,7 @@ static struct dvb_usb_properties digitv_properties = {
         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
 
         .usb_ctrl = CYPRESS_FX2,
-        .firmware = "dvb-usb-digitv-01.fw",
+        .firmware = "dvb-usb-digitv-02.fw",
 
         .size_of_priv     = 0,
 
@@ -229,6 +231,7 @@ static struct dvb_usb_properties digitv_properties = {
                         { &digitv_table[0], NULL },
                         { NULL },
                 },
+                { NULL },
         }
 };