diff options
Diffstat (limited to 'examples/dpfp.c')
| -rw-r--r-- | examples/dpfp.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/examples/dpfp.c b/examples/dpfp.c index a3a76df..6828650 100644 --- a/examples/dpfp.c +++ b/examples/dpfp.c @@ -217,7 +217,11 @@ static thread_return_t __stdcall poll_thread_main(void *arg) static int find_dpfp_device(void) { devh = libusb_open_device_with_vid_pid(NULL, 0x05ba, 0x000a); - return devh ? 0 : -ENODEV; + if (!devh) { + errno = ENODEV; + return -1; + } + return 0; } static int print_f0_data(void) @@ -316,13 +320,16 @@ static int set_mode_async(unsigned char data) unsigned char *buf = malloc(LIBUSB_CONTROL_SETUP_SIZE + 1); struct libusb_transfer *transfer; - if (!buf) - return -ENOMEM; + if (!buf) { + errno = ENOMEM; + return -1; + } transfer = libusb_alloc_transfer(0); if (!transfer) { free(buf); - return -ENOMEM; + errno = ENOMEM; + return -1; } printf("async set mode %02x\n", data); @@ -547,12 +554,16 @@ static int do_init(void) static int alloc_transfers(void) { img_transfer = libusb_alloc_transfer(0); - if (!img_transfer) - return -ENOMEM; + if (!img_transfer) { + errno = ENOMEM; + return -1; + } irq_transfer = libusb_alloc_transfer(0); - if (!irq_transfer) - return -ENOMEM; + if (!irq_transfer) { + errno = ENOMEM; + return -1; + } libusb_fill_bulk_transfer(img_transfer, devh, EP_DATA, imgbuf, sizeof(imgbuf), cb_img, NULL, 0); |