irqchip/ti-sci-inta: Fix return value about devm_ioremap_resource()

[ Upstream commit 4b127a14cb1385dd355c7673d975258d5d668922 ]

When call function devm_ioremap_resource(), we should use IS_ERR()
to check the return value and return PTR_ERR() if failed.

Fixes: 9f1463b86c13 ("irqchip/ti-sci-inta: Add support for Interrupt Aggregator driver")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/1591437017-5295-2-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/irqchip/irq-ti-sci-inta.c b/drivers/irqchip/irq-ti-sci-inta.c
index fa7488863bd0aaa3def6356bf23fd903d2ec4df0..0a35499c46728fa472d6d76ac570314a3c7a4cbc 100644 (file)
--- a/drivers/irqchip/irq-ti-sci-inta.c
+++ b/drivers/irqchip/irq-ti-sci-inta.c
@@ -571,7 +571,7 @@ static int ti_sci_inta_irq_domain_probe(struct platform_device *pdev)
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        inta->base = devm_ioremap_resource(dev, res);
        if (IS_ERR(inta->base))
-               return -ENODEV;
+               return PTR_ERR(inta->base);
 
        domain = irq_domain_add_linear(dev_of_node(dev),
                                       ti_sci_get_num_resources(inta->vint),