linux-kernel - [PATCH 5.9 097/757] irqchip/ti-sci-intr: Fix unsigned comparison to zero

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Date:   Tue, 27 Oct 2020 14:45:47 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, YueHaibing <yuehaibing@...wei.com>,
        Marc Zyngier <maz@...nel.org>,
        Lokesh Vutla <lokeshvutla@...com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.9 097/757] irqchip/ti-sci-intr: Fix unsigned comparison to zero

From: YueHaibing <yuehaibing@...wei.com>

[ Upstream commit 8ddf1905a904ca86d71ca1c435e4b0b2a0b70df8 ]

ti_sci_intr_xlate_irq() return -ENOENT on fail, p_hwirq
should be int type.

Fixes: a5b659bd4bc7 ("irqchip/ti-sci-intr: Add support for INTR being a parent to INTR")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
Signed-off-by: Marc Zyngier <maz@...nel.org>
Acked-by: Lokesh Vutla <lokeshvutla@...com>
Link: https://lore.kernel.org/r/20200826035321.18620-1-yuehaibing@huawei.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/irqchip/irq-ti-sci-intr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-ti-sci-intr.c b/drivers/irqchip/irq-ti-sci-intr.c
index cbc1758228d9e..85a72b56177cf 100644
--- a/drivers/irqchip/irq-ti-sci-intr.c
+++ b/drivers/irqchip/irq-ti-sci-intr.c
@@ -137,8 +137,8 @@ static int ti_sci_intr_alloc_parent_irq(struct irq_domain *domain,
 	struct ti_sci_intr_irq_domain *intr = domain->host_data;
 	struct device_node *parent_node;
 	struct irq_fwspec fwspec;
-	u16 out_irq, p_hwirq;
-	int err = 0;
+	int p_hwirq, err = 0;
+	u16 out_irq;
 
 	out_irq = ti_sci_get_free_resource(intr->out_irqs);
 	if (out_irq == TI_SCI_RESOURCE_NULL)
-- 
2.25.1