diff options
| -rw-r--r-- | drivers/usb/class/usbtmc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index f2fde7cd610..91d3a94eeaa 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -473,6 +473,10 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, n_characters = this_part; } + /* Bound amount of data received by amount of data requested */ + if (n_characters > this_part) + n_characters = this_part; + /* Copy buffer to user space */ if (copy_to_user(buf + done, &buffer[12], n_characters)) { /* There must have been an addressing problem */ |