linux-kernel - [PATCH v3 5/8] clocksource/drivers/tegra: Release all IRQ's on request

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Message-Id: <20190524153253.28564-6-digetx@gmail.com>
Date:   Fri, 24 May 2019 18:32:50 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Joseph Lo <josephl@...dia.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Peter De Schrijver <pdeschrijver@...dia.com>
Cc:     linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        Nicolas Chauvet <kwizart@...il.com>
Subject: [PATCH v3 5/8] clocksource/drivers/tegra: Release all IRQ's on request_irq() error

Release all requested IRQ's on the request error to properly clean up
allocated resources.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 drivers/clocksource/timer-tegra20.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/timer-tegra20.c b/drivers/clocksource/timer-tegra20.c
index 55e9b3e1fbeb..18b81d814b3b 100644
--- a/drivers/clocksource/timer-tegra20.c
+++ b/drivers/clocksource/timer-tegra20.c
@@ -293,7 +293,7 @@ static int __init tegra_init_timer(struct device_node *np, bool tegra20)
 			pr_err("%s: can't map IRQ for CPU%d\n",
 			       __func__, cpu);
 			ret = -EINVAL;
-			goto out;
+			goto out_irq;
 		}
 
 		irq_set_status_flags(cpu_to->clkevt.irq, IRQ_NOAUTOEN);
@@ -303,7 +303,8 @@ static int __init tegra_init_timer(struct device_node *np, bool tegra20)
 		if (ret) {
 			pr_err("%s: cannot setup irq %d for CPU%d\n",
 				__func__, cpu_to->clkevt.irq, cpu);
-			ret = -EINVAL;
+			irq_dispose_mapping(cpu_to->clkevt.irq);
+			cpu_to->clkevt.irq = 0;
 			goto out_irq;
 		}
 	}
-- 
2.21.0