Commit 27bf0294 authored Feb 13, 2023 by Yu Zhe Committed by Jialin Zhang Feb 13, 2023

perf/arm_pmu_platform: fix tests for platform_get_irq() failure

stable inclusion
from stable-v5.10.144
commit fc2c14c2cde931d2fb8fc24a2c5dc3c22504eb19
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0V7

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=fc2c14c2cde931d2fb8fc24a2c5dc3c22504eb19



--------------------------------

[ Upstream commit 6bb0d64c ]

The platform_get_irq() returns negative error codes.  It can't actually
return zero.

Signed-off-by: Yu Zhe <yuzhe@nfschina.com>
Link: https://lore.kernel.org/r/20220825011844.8536-1-yuzhe@nfschina.com


Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>

parent 0ae7381f

drivers/perf/arm_pmu_platform.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -117,7 +117,7 @@ static int pmu_parse_irqs(struct arm_pmu *pmu)

		if (num_irqs == 1) {
		int irq = platform_get_irq(pdev, 0);
		if (irq && irq_is_percpu_devid(irq))
		if ((irq > 0) && irq_is_percpu_devid(irq))
		return pmu_parse_percpu_irq(pmu, irq);
		}