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Commit 76d98ab4 authored by Santosh Sivaraj's avatar Santosh Sivaraj Committed by Michael Ellerman
Browse files

powerpc/powernv: Get cpu only after validity check 



Check for validity of cpu before calling get_hard_smp_processor_id().

Found with coverity.

Signed-off-by: default avatarSantosh Sivaraj <santosh@fossix.org>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 520eccdf

arch/powerpc/platforms/powernv/smp.c

+2 −1
Original line number Diff line number Diff line
@@ -57,7 +57,7 @@ static void pnv_smp_setup_cpu(int cpu) 


static int pnv_smp_kick_cpu(int nr)

{

	unsigned int pcpu = get_hard_smp_processor_id(nr);

	unsigned int pcpu;

	unsigned long start_here =

			__pa(ppc_function_entry(generic_secondary_smp_init));

	long rc;
@@ -66,6 +66,7 @@ static int pnv_smp_kick_cpu(int nr) 
	if (nr < 0 || nr >= nr_cpu_ids)

		return -EINVAL;



	pcpu = get_hard_smp_processor_id(nr);

	/*

	 * If we already started or OPAL is not supported, we just

	 * kick the CPU via the PACA