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Cosmetic change: rewritten error conditions in a more compact way

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This commit is contained in:
Cristian Maglie
2014-12-31 00:37:02 +01:00
parent 9e85415532
commit 2629684436
2 changed files with 8 additions and 11 deletions
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14
serial_windows.go
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@@ -173,7 +173,7 @@ const (
func (port *windowsSerialPort) SetMode(mode *Mode) error {
params := DCB{}
if err := GetCommState(port.Handle, &params); err != nil {
if GetCommState(port.Handle, &params) != nil {
port.Close()
return &SerialPortError{code: ERROR_INVALID_SERIAL_PORT}
}
@@ -189,7 +189,7 @@ func (port *windowsSerialPort) SetMode(mode *Mode) error {
}
params.StopBits = byte(mode.StopBits)
params.Parity = byte(mode.Parity)
if err := SetCommState(port.Handle, &params); err != nil {
if SetCommState(port.Handle, &params) != nil {
port.Close()
return &SerialPortError{code: ERROR_INVALID_SERIAL_PORT}
}
@@ -224,14 +224,13 @@ func OpenPort(portName string, mode *Mode) (SerialPort, error) {
}
// Set port parameters
if err := port.SetMode(mode); err != nil {
if port.SetMode(mode) != nil {
port.Close()
return nil, &SerialPortError{code: ERROR_INVALID_SERIAL_PORT}
}
params := &DCB{}
err = GetCommState(port.Handle, params)
if err != nil {
if GetCommState(port.Handle, params) != nil {
port.Close()
return nil, &SerialPortError{code: ERROR_INVALID_SERIAL_PORT}
}
@@ -248,8 +247,7 @@ func OpenPort(portName string, mode *Mode) (SerialPort, error) {
params.XoffLim = 512
params.XonChar = 17 // DC1
params.XoffChar = 19 // C3
err = SetCommState(port.Handle, params)
if err != nil {
if SetCommState(port.Handle, params) != nil {
port.Close()
return nil, &SerialPortError{code: ERROR_INVALID_SERIAL_PORT}
}
@@ -262,7 +260,7 @@ func OpenPort(portName string, mode *Mode) (SerialPort, error) {
WriteTotalTimeoutConstant: 0,
WriteTotalTimeoutMultiplier: 0,
}
if err := SetCommTimeouts(port.Handle, timeouts); err != nil {
if SetCommTimeouts(port.Handle, timeouts) != nil {
port.Close()
return nil, &SerialPortError{code: ERROR_INVALID_SERIAL_PORT}
}