macOS: fix crash when IOHIDDevice property is not a string (#573)

- fixed crash on macOS when AirPods are connected (reported to happen with some AirPods on some macOS version);
libusb · Jun 7, 2023 · c6c4dd0 · c6c4dd0
1 parent fea2357
commit c6c4dd0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mac/hid.c b/mac/hid.c
@@ -376,7 +376,7 @@ static int get_string_property(IOHIDDeviceRef device, CFStringRef prop, wchar_t
 
 	buf[0] = 0;
 
-	if (str) {
+	if (str && CFGetTypeID(str) == CFStringGetTypeID()) {
 		CFIndex str_len = CFStringGetLength(str);
 		CFRange range;
 		CFIndex used_buf_len;