Commit 295c688d authored by huhai's avatar huhai Committed by Greg Kroah-Hartman
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powerpc/4xx: Don't unmap NULL mbase 



[ Upstream commit bcec081e ]

Signed-off-by: default avatarhuhai <huhai@tj.kylinos.cn>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200521072648.1254699-1-mpe@ellerman.id.au


Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 394ee307
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