MIPS: Malta: Fix crash in SMP kernel on non-CMP systems.
Since 6be63bbb (lmo) rsp. af3a1f6f (kernel.org) the Malta code does no longer probe for presence of GCMP if CMP is not configured. This means that the variable gcmp_present well be left at its default value of -1 which normally is meant to indicate that GCMP has not yet been mmapped. This non-zero value is now interpreted as GCMP being present resulting in a write attempt to a GCMP register resulting in a crash. Reported and a build fix on top of my fix by Rob Landley <rob@landley.net>. Reported-by: NRob Landley <rob@landley.net> Signed-off-by: NRalf Baechle <ralf@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/2413/
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