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Check libusb_get_active_config_descriptor return value

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Avoids a crash if libusb_get_active_config_descriptor() returns with an
error code.
This commit is contained in:
Ludovic Rousseau 2010-11-19 08:46:00 +01:00 committed by Alan Ott
parent 025d81a5a3
commit f9c06d35b2
1 changed files with 2 additions and 1 deletions
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3
linux/hid-libusb.c
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@ -550,7 +550,8 @@ hid_device * HID_API_EXPORT hid_open_path(const char *path)
int i,j,k;
libusb_get_device_descriptor(usb_dev, &desc);
libusb_get_active_config_descriptor(usb_dev, &conf_desc);
if (libusb_get_active_config_descriptor(usb_dev, &conf_desc) < 0)
continue;
for (j = 0; j < conf_desc->bNumInterfaces; j++) {
const struct libusb_interface *intf = &conf_desc->interface[j];
for (k = 0; k < intf->num_altsetting; k++) {