powerpc/4xx: Don't unmap NULL mbase
authorhuhai <huhai@tj.kylinos.cn>
Thu, 21 May 2020 07:26:48 +0000 (17:26 +1000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 24 Jun 2020 15:50:36 +0000 (17:50 +0200)
commit5ed5f8db95821c14f37483b950d0dd31bf592981
tree8dc066778305847c094d9a1466476e06147fa82a
parent838d3e75ba508ee648b6cc8b4c30fc6e5f1c632e
powerpc/4xx: Don't unmap NULL mbase

[ Upstream commit bcec081ecc940fc38730b29c743bbee661164161 ]

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
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/powerpc/platforms/4xx/pci.c