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Stop checking for valid handle in DevInfo.Close()

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User should not have called or deferred the Close() method should
SetupDiGetClassDevsEx() return an error (and invalid handle). And even
if user does that, a SetupDiDestroyDeviceInfoList(INVALID_HANDLE_VALUE)
is harmless. It just returns ERROR_INVALID_HANDLE - we have a unit test
for this in TestSetupDiDestroyDeviceInfoList().

Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman 2019-02-04 08:22:49 +01:00 committed by Jason A. Donenfeld
parent 269944002f
commit 90b6938ca0
1 changed files with 1 additions and 5 deletions
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4
setupapi/types_windows.go
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@ -25,13 +25,9 @@ type DevInfo windows.Handle
// Close function deletes a device information set and frees all associated memory.
func (h DevInfo) Close() error {
if h != DevInfo(windows.InvalidHandle) {
return SetupDiDestroyDeviceInfoList(h)
}
return nil
}
const (
// SP_MAX_MACHINENAME_LENGTH defines maximum length of a machine name in the format expected by ConfigMgr32 CM_Connect_Machine (i.e., "\\\\MachineName\0").
SP_MAX_MACHINENAME_LENGTH = windows.MAX_PATH + 3