diff options
| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2018-10-18 11:57:04 +0200 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2019-02-23 12:13:45 +0100 |
| commit | b9307420196009cdf18bad55e762ac49fb9a80f4 (patch) | |
| tree | 6c42ce2bc760b396358efa21dcabf40cc426f879 /drivers/clocksource/exynos_mct.c | |
| parent | clocksource/drivers/exynos_mct: Remove dead code (diff) | |
| download | linux-b9307420196009cdf18bad55e762ac49fb9a80f4.tar.xz linux-b9307420196009cdf18bad55e762ac49fb9a80f4.zip | |
clocksource/drivers/exynos_mct: Fix error path in timer resources initialization
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>
Diffstat (limited to 'drivers/clocksource/exynos_mct.c')
| -rw-r--r-- | drivers/clocksource/exynos_mct.c | 14 |
1 files changed, 13 insertions, 1 deletions
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; } |