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path: root/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
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Diffstat (limited to 'drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c')
-rw-r--r--drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c35
1 files changed, 18 insertions, 17 deletions
diff --git a/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c b/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
index 5a13c4744f6..248fdc7accf 100644
--- a/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
+++ b/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
@@ -19,7 +19,7 @@
#include <linux/time.h>
#include <linux/errno.h>
#include <linux/jiffies.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
#include "dvb_frontend.h"
#include "dmxdev.h"
@@ -35,7 +35,6 @@
#include <linux/dvb/dmx.h>
#include <linux/pci.h>
-
/*
TTUSB_HWSECTIONS:
the DSP supports filtering in hardware, however, since the "muxstream"
@@ -83,8 +82,8 @@ struct ttusb {
struct dvb_net dvbnet;
/* and one for USB access. */
- struct semaphore semi2c;
- struct semaphore semusb;
+ struct mutex semi2c;
+ struct mutex semusb;
struct dvb_adapter adapter;
struct usb_device *dev;
@@ -150,7 +149,7 @@ static int ttusb_cmd(struct ttusb *ttusb,
printk("\n");
#endif
- if (down_interruptible(&ttusb->semusb) < 0)
+ if (mutex_lock_interruptible(&ttusb->semusb) < 0)
return -EAGAIN;
err = usb_bulk_msg(ttusb->dev, ttusb->bulk_out_pipe,
@@ -158,13 +157,13 @@ static int ttusb_cmd(struct ttusb *ttusb,
if (err != 0) {
dprintk("%s: usb_bulk_msg(send) failed, err == %i!\n",
__FUNCTION__, err);
- up(&ttusb->semusb);
+ mutex_unlock(&ttusb->semusb);
return err;
}
if (actual_len != len) {
dprintk("%s: only wrote %d of %d bytes\n", __FUNCTION__,
actual_len, len);
- up(&ttusb->semusb);
+ mutex_unlock(&ttusb->semusb);
return -1;
}
@@ -174,7 +173,7 @@ static int ttusb_cmd(struct ttusb *ttusb,
if (err != 0) {
printk("%s: failed, receive error %d\n", __FUNCTION__,
err);
- up(&ttusb->semusb);
+ mutex_unlock(&ttusb->semusb);
return err;
}
#if DEBUG >= 3
@@ -185,14 +184,14 @@ static int ttusb_cmd(struct ttusb *ttusb,
printk("\n");
#endif
if (!needresult)
- up(&ttusb->semusb);
+ mutex_unlock(&ttusb->semusb);
return 0;
}
static int ttusb_result(struct ttusb *ttusb, u8 * data, int len)
{
memcpy(data, ttusb->last_result, len);
- up(&ttusb->semusb);
+ mutex_unlock(&ttusb->semusb);
return 0;
}
@@ -250,7 +249,7 @@ static int master_xfer(struct i2c_adapter* adapter, struct i2c_msg *msg, int num
int i = 0;
int inc;
- if (down_interruptible(&ttusb->semi2c) < 0)
+ if (mutex_lock_interruptible(&ttusb->semi2c) < 0)
return -EAGAIN;
while (i < num) {
@@ -284,7 +283,7 @@ static int master_xfer(struct i2c_adapter* adapter, struct i2c_msg *msg, int num
i += inc;
}
- up(&ttusb->semi2c);
+ mutex_unlock(&ttusb->semi2c);
return i;
}
@@ -689,8 +688,7 @@ static void ttusb_process_frame(struct ttusb *ttusb, u8 * data, int len)
memcpy(ttusb->muxpack + ttusb->muxpack_ptr,
data, avail);
ttusb->muxpack_ptr += avail;
- if (ttusb->muxpack_ptr > 264)
- BUG();
+ BUG_ON(ttusb->muxpack_ptr > 264);
data += avail;
len -= avail;
/* determine length */
@@ -1495,8 +1493,11 @@ static int ttusb_probe(struct usb_interface *intf, const struct usb_device_id *i
ttusb->dev = udev;
ttusb->c = 0;
ttusb->mux_state = 0;
- sema_init(&ttusb->semi2c, 0);
- sema_init(&ttusb->semusb, 1);
+ mutex_init(&ttusb->semi2c);
+
+ mutex_lock(&ttusb->semi2c);
+
+ mutex_init(&ttusb->semusb);
ttusb_setup_interfaces(ttusb);
@@ -1504,7 +1505,7 @@ static int ttusb_probe(struct usb_interface *intf, const struct usb_device_id *i
if (ttusb_init_controller(ttusb))
printk("ttusb_init_controller: error\n");
- up(&ttusb->semi2c);
+ mutex_unlock(&ttusb->semi2c);
dvb_register_adapter(&ttusb->adapter, "Technotrend/Hauppauge Nova-USB", THIS_MODULE);
ttusb->adapter.priv = ttusb;