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perf: RISC-V: Add of_node_put() when breaking out of for_each_of_cpu_node()

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[ Upstream commit 491f10d08fdae10a177edf6af4f43b83b293114b ]

In pmu_sbi_setup_irqs(), we should call of_node_put() for the 'cpu'
when breaking out of for_each_of_cput_node() as its refcount will
be automatically increased and decreased during the iteration.

Fixes: 4905ec2fb7e6 ("RISC-V: Add sscofpmf extension support")
Signed-off-by: Liang He <windhl@126.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20220715130330.443363-1-windhl@126.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Liang He 2022-07-15 21:03:30 +08:00 committed by Greg Kroah-Hartman
parent 9987e2d15f
commit ddb603a99f
1 changed files with 4 additions and 1 deletions
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5
drivers/perf/riscv_pmu_sbi.c
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@ -682,12 +682,15 @@ static int pmu_sbi_setup_irqs(struct riscv_pmu *pmu, struct platform_device *pde
child = of_get_compatible_child(cpu, "riscv,cpu-intc");
if (!child) {
pr_err("Failed to find INTC node\n");
of_node_put(cpu);
return -ENODEV;
}
domain = irq_find_host(child);
of_node_put(child);
if (domain)
if (domain) {
of_node_put(cpu);
break;
}
}
if (!domain) {
pr_err("Failed to find INTC IRQ root domain\n");