Messages in this thread Patch in this message | | | From | Daniel Lezcano <> | Subject | [PATCH 09/18] clocksource/drivers/exynos_mct: Fix error path in timer resources initialization | Date | Sat, 23 Feb 2019 14:06:57 +0100 |
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From: Marek Szyprowski <m.szyprowski@samsung.com>
While freeing interrupt handlers in error path, don't assume that all requested interrupts are per-processor interrupts and properly release standard interrupts too.
Reported-by: Krzysztof Kozlowski <krzk@kernel.org> Fixes: 56a94f13919c ("clocksource: exynos_mct: Avoid blocking calls in the cpu hotplug notifier") Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> --- drivers/clocksource/exynos_mct.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c index 647ea9fc752f..33e90c080877 100644 --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -562,7 +562,19 @@ static int __init exynos4_timer_resources(struct device_node *np, void __iomem * return 0; out_irq: - free_percpu_irq(mct_irqs[MCT_L0_IRQ], &percpu_mct_tick); + if (mct_int_type == MCT_INT_PPI) { + free_percpu_irq(mct_irqs[MCT_L0_IRQ], &percpu_mct_tick); + } else { + for_each_possible_cpu(cpu) { + struct mct_clock_event_device *pcpu_mevt = + per_cpu_ptr(&percpu_mct_tick, cpu); + + if (pcpu_mevt->evt.irq != -1) { + free_irq(pcpu_mevt->evt.irq, pcpu_mevt); + pcpu_mevt->evt.irq = -1; + } + } + } return err; } -- 2.17.1
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