media: usb: remove unnecessary (void*) conversions

No need cast (void*) to (struct dvb_usb_device *) or
(struct filter_info *).
Signed-off-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: drop the obsolete dvb-usb/az6027.c and dvb-usb/pctv452e.c changes]

drivers/media/usb/dvb-usb-v2/az6007.c

@@ -249,7 +249,7 @@ static int az6007_ci_read_attribute_mem(struct dvb_ca_en50221 *ca,
 					int slot,
 					int address)
 {
-	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct dvb_usb_device *d = ca->data;
 	struct az6007_device_state *state = d_to_priv(d);
 
 	int ret;
@@ -291,7 +291,7 @@ static int az6007_ci_write_attribute_mem(struct dvb_ca_en50221 *ca,
 					 int address,
 					 u8 value)
 {
-	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct dvb_usb_device *d = ca->data;
 	struct az6007_device_state *state = d_to_priv(d);
 
 	int ret;
@@ -322,7 +322,7 @@ static int az6007_ci_read_cam_control(struct dvb_ca_en50221 *ca,
 				      int slot,
 				      u8 address)
 {
-	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct dvb_usb_device *d = ca->data;
 	struct az6007_device_state *state = d_to_priv(d);
 
 	int ret;
@@ -368,7 +368,7 @@ static int az6007_ci_write_cam_control(struct dvb_ca_en50221 *ca,
 				       u8 address,
 				       u8 value)
 {
-	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct dvb_usb_device *d = ca->data;
 	struct az6007_device_state *state = d_to_priv(d);
 
 	int ret;
@@ -399,7 +399,7 @@ static int az6007_ci_write_cam_control(struct dvb_ca_en50221 *ca,
 
 static int CI_CamReady(struct dvb_ca_en50221 *ca, int slot)
 {
-	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct dvb_usb_device *d = ca->data;
 
 	int ret;
 	u8 req;
@@ -430,7 +430,7 @@ static int CI_CamReady(struct dvb_ca_en50221 *ca, int slot)
 
 static int az6007_ci_slot_reset(struct dvb_ca_en50221 *ca, int slot)
 {
-	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct dvb_usb_device *d = ca->data;
 	struct az6007_device_state *state = d_to_priv(d);
 
 	int ret, i;
@@ -486,7 +486,7 @@ static int az6007_ci_slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
 
 static int az6007_ci_slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
 {
-	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct dvb_usb_device *d = ca->data;
 	struct az6007_device_state *state = d_to_priv(d);
 
 	int ret;
@@ -515,7 +515,7 @@ static int az6007_ci_slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
 
 static int az6007_ci_poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open)
 {
-	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct dvb_usb_device *d = ca->data;
 	struct az6007_device_state *state = d_to_priv(d);
 	int ret;
 	u8 req;

drivers/media/usb/ttusb-dec/ttusb_dec.c

@@ -1128,7 +1128,7 @@ static int ttusb_dec_stop_sec_feed(struct dvb_demux_feed *dvbdmxfeed)
 {
 	struct ttusb_dec *dec = dvbdmxfeed->demux->priv;
 	u8 b0[] = { 0x00, 0x00 };
-	struct filter_info *finfo = (struct filter_info *)dvbdmxfeed->priv;
+	struct filter_info *finfo = dvbdmxfeed->priv;
 	unsigned long flags;
 
 	b0[1] = finfo->stream_id;