unix: nativeOpen: always close the port on errors

bugst · Feb 11, 2024 · 0f730e4 · 0f730e4
1 parent 8a31fcb
commit 0f730e4
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/serial_unix.go b/serial_unix.go
@@ -249,6 +249,7 @@ func nativeOpen(portName string, mode *Mode) (*unixPort, error) {
 	if mode.InitialStatusBits != nil {
 		status, err := port.getModemBitsStatus()
 		if err != nil {
+			port.Close()
 			return nil, &PortError{code: InvalidSerialPort, causedBy: err}
 		}
 		if mode.InitialStatusBits.DTR {
@@ -262,6 +263,7 @@ func nativeOpen(portName string, mode *Mode) (*unixPort, error) {
 			status &^= unix.TIOCM_RTS
 		}
 		if err := port.setModemBitsStatus(status); err != nil {
+			port.Close()
 			return nil, &PortError{code: InvalidSerialPort, causedBy: err}
 		}
 	}