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Process libusb_get_device_list error #160

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Process libusb_get_device_list error #160

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12 changes: 12 additions & 0 deletions ThirdParty/PSCommon/XnLib/Source/Linux/XnLinuxUSB.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -585,6 +585,12 @@ XN_C_API XnStatus xnUSBEnumerateDevices(XnUInt16 nVendorID, XnUInt16 nProductID,
libusb_device** ppDevices;
ssize_t nDeviceCount = libusb_get_device_list(g_InitData.pContext, &ppDevices);

// check for error
if (nDeviceCount < 0)
{
return (XN_STATUS_USB_ENUMERATE_FAILED);
}

// first enumeration - count
XnUInt32 nCount = 0;

Expand Down Expand Up @@ -763,6 +769,12 @@ XN_C_API XnStatus xnUSBOpenDeviceByPath(const XnUSBConnectionString strDevicePat
libusb_device** ppDevices;
ssize_t nDeviceCount = libusb_get_device_list(g_InitData.pContext, &ppDevices);

// check for error
if (nDeviceCount < 0)
{
return (XN_STATUS_USB_ENUMERATE_FAILED);
}

libusb_device* pRequestedDevice = NULL;

for (ssize_t i = 0; i < nDeviceCount; ++i)
Expand Down