diff options
Diffstat (limited to 'lib/libusb/libusb10_desc.c')
| -rw-r--r-- | lib/libusb/libusb10_desc.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/libusb/libusb10_desc.c b/lib/libusb/libusb10_desc.c index 58237236bb5f..3448679de2f8 100644 --- a/lib/libusb/libusb10_desc.c +++ b/lib/libusb/libusb10_desc.c @@ -300,6 +300,9 @@ libusb_get_string_descriptor_ascii(libusb_device_handle *pdev, if (pdev == NULL || data == NULL || length < 1) return (LIBUSB20_ERROR_INVALID_PARAM); + if (length > 65535) + length = 65535; + /* put some default data into the destination buffer */ data[0] = 0; @@ -314,6 +317,12 @@ int libusb_get_descriptor(libusb_device_handle * devh, uint8_t desc_type, uint8_t desc_index, uint8_t *data, int length) { + if (devh == NULL || data == NULL || length < 1) + return (LIBUSB20_ERROR_INVALID_PARAM); + + if (length > 65535) + length = 65535; + return (libusb_control_transfer(devh, LIBUSB_ENDPOINT_IN, LIBUSB_REQUEST_GET_DESCRIPTOR, (desc_type << 8) | desc_index, 0, data, length, 1000)); |