kinect_upload_fw: fix a couple of minor warnings from 'sparse'

Sparse is a Semantic Parser for C, it gives these warnings on
kinect_upload_fw.c:

kinect_upload_fw.c:42:14: warning: symbol 'seq' was not declared. Should it be static?
kinect_upload_fw.c:149:26: warning: Using plain integer as NULL pointer

diff --git a/kinect_upload_fw/kinect_upload_fw.c b/kinect_upload_fw/kinect_upload_fw.c
index eb65113..21bdef9 100644 (file)
--- a/kinect_upload_fw/kinect_upload_fw.c
+++ b/kinect_upload_fw/kinect_upload_fw.c
@@ -39,7 +39,7 @@
 #include "endian.h"
 
 static libusb_device_handle *dev;
-unsigned int seq;
+static unsigned int seq;
 
 typedef struct {
        uint32_t magic;
@@ -146,7 +146,7 @@ int main(int argc, char** argv) {
        }
 
        libusb_init(NULL);
-       libusb_set_debug(0, 3);
+       libusb_set_debug(NULL, 3);
 
        dev = libusb_open_device_with_vid_pid(NULL, 0x045e, 0x02ad);
        if (dev == NULL) {