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drivers: Simplify libusb_alloc_transfer(0) calls

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By using our new, never-failing, USB allocation wrapper. As it can never
fail, we can also remove all the error paths for the allocations
failing.
This commit is contained in:
Bastien Nocera
2018-09-19 17:06:17 +02:00
parent bdba9990fb
commit 10ae8ffb55
18 changed files with 74 additions and 325 deletions
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21
libfprint/drivers/aes1610.c
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@@ -128,15 +128,10 @@ static void generic_write_regv_cb(struct fp_img_dev *dev, int result,
* away, then increment the SSM */
static void generic_read_ignore_data(fpi_ssm *ssm, struct fp_dev *dev, size_t bytes)
{
struct libusb_transfer *transfer = libusb_alloc_transfer(0);
struct libusb_transfer *transfer = fpi_usb_alloc();
unsigned char *data;
int r;
if (!transfer) {
fpi_ssm_mark_failed(ssm, -ENOMEM);
return;
}
data = g_malloc(bytes);
libusb_fill_bulk_transfer(transfer, fpi_dev_get_usb_dev(dev), EP_IN, data, bytes,
generic_ignore_data_cb, ssm, BULK_TIMEOUT);
@@ -224,12 +219,7 @@ static void finger_det_reqs_cb(struct fp_img_dev *dev, int result, void *user_da
return;
}
transfer = libusb_alloc_transfer(0);
if (!transfer) {
fpi_imgdev_session_error(dev, -ENOMEM);
return;
}
transfer = fpi_usb_alloc();
data = g_malloc(19);
libusb_fill_bulk_transfer(transfer, fpi_dev_get_usb_dev(FP_DEV(dev)), EP_IN, data, 19,
finger_det_data_cb, dev, BULK_TIMEOUT);
@@ -666,14 +656,9 @@ static void capture_run_state(fpi_ssm *ssm, struct fp_dev *_dev, void *user_data
generic_write_regv_cb, ssm);
break;
case CAPTURE_READ_STRIP: ;
struct libusb_transfer *transfer = libusb_alloc_transfer(0);
struct libusb_transfer *transfer = fpi_usb_alloc();
unsigned char *data;
if (!transfer) {
fpi_ssm_mark_failed(ssm, -ENOMEM);
break;
}
data = g_malloc(665);
libusb_fill_bulk_transfer(transfer, fpi_dev_get_usb_dev(FP_DEV(dev)), EP_IN, data, 665,
capture_read_strip_cb, ssm, BULK_TIMEOUT);