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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/vcom5s.c
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@@ -91,15 +91,10 @@ sm_write_reg(fpi_ssm *ssm,
unsigned char reg,
unsigned char value)
{
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;
}
fp_dbg("set %02x=%02x", reg, value);
data = g_malloc(LIBUSB_CONTROL_SETUP_SIZE);
libusb_fill_control_setup(data, CTRL_OUT, reg, value, 0, 0);
@@ -132,14 +127,9 @@ sm_exec_cmd(fpi_ssm *ssm,
unsigned char cmd,
unsigned char param)
{
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;
}
fp_dbg("cmd %02x param %02x", cmd, param);
data = g_malloc(LIBUSB_CONTROL_SETUP_SIZE);
@@ -228,14 +218,9 @@ capture_iterate(fpi_ssm *ssm,
{
struct v5s_dev *vdev = FP_INSTANCE_DATA(FP_DEV(dev));
int iteration = vdev->capture_iteration;
struct libusb_transfer *transfer = libusb_alloc_transfer(0);
struct libusb_transfer *transfer = fpi_usb_alloc();
int r;
if (!transfer) {
fpi_ssm_mark_failed(ssm, -ENOMEM);
return;
}
libusb_fill_bulk_transfer(transfer, fpi_dev_get_usb_dev(FP_DEV(dev)), EP_IN,
vdev->capture_img->data + (RQ_SIZE * iteration), RQ_SIZE,
capture_cb, ssm, CTRL_TIMEOUT);