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

Greg Kroah-Hartman
2020-10-27T15:31:26Z

From: YueHaibing <yuehaibing@huawei.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@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20200826035321.18620-1-yuehaibing@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.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