bug report in subroutine MLWF_WANNIER90_AMN in sources/CSC-mods/vasp/mlwf.F

[yuechm]

Dear developer,

I find there is a bug in the subroutine MLWF_WANNIER90_AMN in sources/CSC-mods/vasp/mlwf.F .
You forgot to allocate M_matrix which will cause a segment fault error.

You can just fix the bug by adding after the line #541 in sources/CSC-mods/vasp/mlwf.F
ALLOCATE(M_matrix(num_bands,num_bands,nntot,num_kpts,WDES%ISPIN))
and by adding after the line #918.
DEALLOCATE(M_matrix)

Best,

Changming Yue