[PATCH AUTOSEL 5.10 12/14] perf/arm_pmu_platform: fix tests for platform_get_irq() failure
Sasha Levin
sashal at kernel.org
Sat Sep 10 14:18:30 PDT 2022
From: Yu Zhe <yuzhe at nfschina.com>
[ Upstream commit 6bb0d64c100091e131cd16710b62fda3319cd0af ]
The platform_get_irq() returns negative error codes. It can't actually
return zero.
Signed-off-by: Yu Zhe <yuzhe at nfschina.com>
Link: https://lore.kernel.org/r/20220825011844.8536-1-yuzhe@nfschina.com
Signed-off-by: Will Deacon <will at kernel.org>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
drivers/perf/arm_pmu_platform.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index ef9676418c9f4..2e1f3680d8466 100644
--- a/drivers/perf/arm_pmu_platform.c
+++ b/drivers/perf/arm_pmu_platform.c
@@ -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);
}
--
2.35.1
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