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authorMauro Carvalho Chehab <mchehab@redhat.com>2010-09-14 16:56:22 +0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-10-21 07:06:12 +0400
commitcf9b475d5f9b58c23aca76b367f8318743d064e9 (patch)
tree61ef85fc4ae421447b20f782c24882dd2873d5cf /drivers/media/radio/si470x
parente69e34e9d964b66013dc09a112e6b46def0af1ef (diff)
downloadlinux-cf9b475d5f9b58c23aca76b367f8318743d064e9.tar.xz
V4L/DVB: radio-si470x: remove the BKL lock used internally at the driver
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio/si470x')
-rw-r--r--drivers/media/radio/si470x/radio-si470x-usb.c17
-rw-r--r--drivers/media/radio/si470x/radio-si470x.h1
2 files changed, 8 insertions, 10 deletions
diff --git a/drivers/media/radio/si470x/radio-si470x-usb.c b/drivers/media/radio/si470x/radio-si470x-usb.c
index 5ec13e50a9f0..392e84fe90ef 100644
--- a/drivers/media/radio/si470x/radio-si470x-usb.c
+++ b/drivers/media/radio/si470x/radio-si470x-usb.c
@@ -517,7 +517,7 @@ int si470x_fops_open(struct file *file)
struct si470x_device *radio = video_drvdata(file);
int retval;
- lock_kernel();
+ mutex_lock(&radio->lock);
radio->users++;
retval = usb_autopm_get_interface(radio->intf);
@@ -558,7 +558,7 @@ int si470x_fops_open(struct file *file)
}
done:
- unlock_kernel();
+ mutex_unlock(&radio->lock);
return retval;
}
@@ -577,7 +577,7 @@ int si470x_fops_release(struct file *file)
goto done;
}
- mutex_lock(&radio->disconnect_lock);
+ mutex_lock(&radio->lock);
radio->users--;
if (radio->users == 0) {
/* shutdown interrupt handler */
@@ -591,7 +591,7 @@ int si470x_fops_release(struct file *file)
video_unregister_device(radio->videodev);
kfree(radio->int_in_buffer);
kfree(radio->buffer);
- mutex_unlock(&radio->disconnect_lock);
+ mutex_unlock(&radio->lock);
kfree(radio);
goto done;
}
@@ -603,7 +603,7 @@ int si470x_fops_release(struct file *file)
retval = si470x_stop(radio);
usb_autopm_put_interface(radio->intf);
}
- mutex_unlock(&radio->disconnect_lock);
+ mutex_unlock(&radio->lock);
done:
return retval;
}
@@ -661,7 +661,6 @@ static int si470x_usb_driver_probe(struct usb_interface *intf,
radio->disconnected = 0;
radio->usbdev = interface_to_usbdev(intf);
radio->intf = intf;
- mutex_init(&radio->disconnect_lock);
mutex_init(&radio->lock);
iface_desc = intf->cur_altsetting;
@@ -830,7 +829,7 @@ static void si470x_usb_driver_disconnect(struct usb_interface *intf)
{
struct si470x_device *radio = usb_get_intfdata(intf);
- mutex_lock(&radio->disconnect_lock);
+ mutex_lock(&radio->lock);
radio->disconnected = 1;
usb_set_intfdata(intf, NULL);
if (radio->users == 0) {
@@ -843,10 +842,10 @@ static void si470x_usb_driver_disconnect(struct usb_interface *intf)
kfree(radio->int_in_buffer);
video_unregister_device(radio->videodev);
kfree(radio->buffer);
- mutex_unlock(&radio->disconnect_lock);
+ mutex_unlock(&radio->lock);
kfree(radio);
} else {
- mutex_unlock(&radio->disconnect_lock);
+ mutex_unlock(&radio->lock);
}
}
diff --git a/drivers/media/radio/si470x/radio-si470x.h b/drivers/media/radio/si470x/radio-si470x.h
index 3cd0a29cd6e7..d3d86ba6e547 100644
--- a/drivers/media/radio/si470x/radio-si470x.h
+++ b/drivers/media/radio/si470x/radio-si470x.h
@@ -177,7 +177,6 @@ struct si470x_device {
/* driver management */
unsigned char disconnected;
- struct mutex disconnect_lock;
#endif
#if defined(CONFIG_I2C_SI470X) || defined(CONFIG_I2C_SI470X_MODULE)