diff options
Diffstat (limited to 'drivers/usb/class/usbtmc.c')
| -rw-r--r-- | drivers/usb/class/usbtmc.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 8e74657f106..0f5c05f6f9d 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -21,6 +21,7 @@ #include <linux/init.h> #include <linux/module.h> +#include <linux/kernel.h> #include <linux/fs.h> #include <linux/uaccess.h> #include <linux/kref.h> @@ -51,6 +52,7 @@ static struct usb_device_id usbtmc_devices[] = { { USB_INTERFACE_INFO(USB_CLASS_APP_SPEC, 3, 0), }, { 0, } /* terminating entry */ }; +MODULE_DEVICE_TABLE(usb, usbtmc_devices); /* * This structure is the capabilities for the device @@ -481,7 +483,6 @@ static ssize_t usbtmc_write(struct file *filp, const char __user *buf, int retval; int actual; unsigned long int n_bytes; - int n; int remaining; int done; int this_part; @@ -525,11 +526,8 @@ static ssize_t usbtmc_write(struct file *filp, const char __user *buf, goto exit; } - n_bytes = 12 + this_part; - if (this_part % 4) - n_bytes += 4 - this_part % 4; - for (n = 12 + this_part; n < n_bytes; n++) - buffer[n] = 0; + n_bytes = roundup(12 + this_part, 4); + memset(buffer + 12 + this_part, 0, n_bytes - (12 + this_part)); retval = usb_bulk_msg(data->usb_dev, usb_sndbulkpipe(data->usb_dev, |