RadioAstronomyGUI::spectrumSeries_clicked() called
calcVrAndDistanceToPeak() without verifying that currentFFT() returned a
valid FFTMeasurement. Since currentFFT() can return nullptr and
calcVrAndDistanceToPeak() immediately dereferences the pointer, this could
result in a null pointer dereference.
Guard the calls so they are only made when a valid FFT measurement is
available, matching the existing pattern used elsewhere in the class.
Reported by Coverity (CID 649213).
Signed-off-by: Robin Getz <rgetz503@gmail.com>
Robin Getz
b44ff3ee00