powerpc/4xx: Don't unmap NULL mbase
authorhuhai <huhai@tj.kylinos.cn>
Thu, 21 May 2020 07:26:48 +0000 (17:26 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 28 May 2020 13:24:36 +0000 (23:24 +1000)
commitbcec081ecc940fc38730b29c743bbee661164161
tree256a794ebf0decf883c0c9cd4b577dc751e844be
parent3aacaa719b7bf135551cabde2480e8f7bfdf7c7d
powerpc/4xx: Don't unmap NULL mbase

Signed-off-by: huhai <huhai@tj.kylinos.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200521072648.1254699-1-mpe@ellerman.id.au
arch/powerpc/platforms/4xx/pci.c