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hid_error() could return a null, which causes the program to crash with

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std::logic_error()
This commit is contained in:
TheQuantumPhysicist 2019-08-09 21:24:48 +02:00
parent 8adde33e01
commit 6ca033d278
1 changed files with 2 additions and 1 deletions
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3
src/device/device_io_hid.cpp
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@ -44,7 +44,8 @@ namespace hw {
static std::string safe_hid_error(hid_device *hwdev) { static std::string safe_hid_error(hid_device *hwdev) {
if (hwdev) { if (hwdev) {
return std::string((char*)hid_error(hwdev)); const char* error_str = (const char*)hid_error(hwdev);
return std::string(error_str == nullptr ? "Unknown error" : error_str);
} }
return std::string("NULL device"); return std::string("NULL device");
} }