diff options
Diffstat (limited to 'drivers/media/radio/radio-ma901.c')
| -rw-r--r-- | drivers/media/radio/radio-ma901.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/media/radio/radio-ma901.c b/drivers/media/radio/radio-ma901.c index c61f590029ad..a85b064cb7be 100644 --- a/drivers/media/radio/radio-ma901.c +++ b/drivers/media/radio/radio-ma901.c @@ -239,7 +239,7 @@ static int vidioc_g_tuner(struct file *file, void *priv, /* vidioc_s_tuner - set tuner attributes */ static int vidioc_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *v) + const struct v4l2_tuner *v) { struct ma901radio_device *radio = video_drvdata(file); @@ -257,7 +257,7 @@ static int vidioc_s_tuner(struct file *file, void *priv, /* vidioc_s_frequency - set tuner radio frequency */ static int vidioc_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) + const struct v4l2_frequency *f) { struct ma901radio_device *radio = video_drvdata(file); @@ -347,9 +347,20 @@ static void usb_ma901radio_release(struct v4l2_device *v4l2_dev) static int usb_ma901radio_probe(struct usb_interface *intf, const struct usb_device_id *id) { + struct usb_device *dev = interface_to_usbdev(intf); struct ma901radio_device *radio; int retval = 0; + /* Masterkit MA901 usb radio has the same USB ID as many others + * Atmel V-USB devices. Let's make additional checks to be sure + * that this is our device. + */ + + if (dev->product && dev->manufacturer && + (strncmp(dev->product, "MA901", 5) != 0 + || strncmp(dev->manufacturer, "www.masterkit.ru", 16) != 0)) + return -ENODEV; + radio = kzalloc(sizeof(struct ma901radio_device), GFP_KERNEL); if (!radio) { dev_err(&intf->dev, "kzalloc for ma901radio_device failed\n"); |