diff options
Diffstat (limited to 'drivers/usb/class/usbtmc.c')
| -rw-r--r-- | drivers/usb/class/usbtmc.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 0f5c05f6f9df..b09a527f7341 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -50,6 +50,7 @@ static struct usb_device_id usbtmc_devices[] = { { USB_INTERFACE_INFO(USB_CLASS_APP_SPEC, 3, 0), }, + { USB_INTERFACE_INFO(USB_CLASS_APP_SPEC, 3, 1), }, { 0, } /* terminating entry */ }; MODULE_DEVICE_TABLE(usb, usbtmc_devices); @@ -106,12 +107,13 @@ static int usbtmc_open(struct inode *inode, struct file *filp) { struct usb_interface *intf; struct usbtmc_device_data *data; - int retval = -ENODEV; + int retval = 0; intf = usb_find_interface(&usbtmc_driver, iminor(inode)); if (!intf) { printk(KERN_ERR KBUILD_MODNAME ": can not find device for minor %d", iminor(inode)); + retval = -ENODEV; goto exit; } @@ -749,7 +751,7 @@ static int get_capabilities(struct usbtmc_device_data *data) { struct device *dev = &data->usb_dev->dev; char *buffer; - int rv; + int rv = 0; buffer = kmalloc(0x18, GFP_KERNEL); if (!buffer) @@ -761,7 +763,7 @@ static int get_capabilities(struct usbtmc_device_data *data) 0, 0, buffer, 0x18, USBTMC_TIMEOUT); if (rv < 0) { dev_err(dev, "usb_control_msg returned %d\n", rv); - return rv; + goto err_out; } dev_dbg(dev, "GET_CAPABILITIES returned %x\n", buffer[0]); @@ -771,7 +773,8 @@ static int get_capabilities(struct usbtmc_device_data *data) dev_dbg(dev, "USB488 device capabilities are %x\n", buffer[15]); if (buffer[0] != USBTMC_STATUS_SUCCESS) { dev_err(dev, "GET_CAPABILITIES returned %x\n", buffer[0]); - return -EPERM; + rv = -EPERM; + goto err_out; } data->capabilities.interface_capabilities = buffer[4]; @@ -779,8 +782,9 @@ static int get_capabilities(struct usbtmc_device_data *data) data->capabilities.usb488_interface_capabilities = buffer[14]; data->capabilities.usb488_device_capabilities = buffer[15]; +err_out: kfree(buffer); - return 0; + return rv; } #define capability_attribute(name) \ @@ -925,21 +929,27 @@ static long usbtmc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) switch (cmd) { case USBTMC_IOCTL_CLEAR_OUT_HALT: retval = usbtmc_ioctl_clear_out_halt(data); + break; case USBTMC_IOCTL_CLEAR_IN_HALT: retval = usbtmc_ioctl_clear_in_halt(data); + break; case USBTMC_IOCTL_INDICATOR_PULSE: retval = usbtmc_ioctl_indicator_pulse(data); + break; case USBTMC_IOCTL_CLEAR: retval = usbtmc_ioctl_clear(data); + break; case USBTMC_IOCTL_ABORT_BULK_OUT: retval = usbtmc_ioctl_abort_bulk_out(data); + break; case USBTMC_IOCTL_ABORT_BULK_IN: retval = usbtmc_ioctl_abort_bulk_in(data); + break; } mutex_unlock(&data->io_mutex); |