powerpc/powernv: Return for invalid IMC domain
[ Upstream commit b59bd3527fe3c1939340df558d7f9d568fc9f882 ] Currently init_imc_pmu() can fail either because we try to register an IMC unit with an invalid domain (i.e an IMC node not supported by the kernel) or something went wrong while registering a valid IMC unit. In both the cases kernel provides a 'Register failed' error message. For example when trace-imc node is not supported by the kernel, but skiboot advertises a trace-imc node we print: IMC Unknown Device type IMC PMU (null) Register failed To avoid confusion just print the unknown device type message, before attempting PMU registration, so the second message isn't printed. Fixes: 8f95faaa ("powerpc/powernv: Detect and create IMC device") Reported-by: NPavaman Subramaniyam <pavsubra@in.ibm.com> Signed-off-by: NAnju T Sudhakar <anju@linux.vnet.ibm.com> Reviewed-by: NMadhavan Srinivasan <maddy@linux.vnet.ibm.com> [mpe: Reword change log a bit] Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au> Signed-off-by: NSasha Levin <sashal@kernel.org>
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