[PATCH] irqchip: irq-mtk-sysirq: Make mtk_sysirq_of_init return error if ioremap fails
From: Axel Lin
Date: Thu May 21 2015 - 10:57:45 EST
PTR_ERR(NULL) returns 0 so current code returns 0 if ioremap fails, fix it.
Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
---
drivers/irqchip/irq-mtk-sysirq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-mtk-sysirq.c b/drivers/irqchip/irq-mtk-sysirq.c
index 04de2d4..15c1303 100644
--- a/drivers/irqchip/irq-mtk-sysirq.c
+++ b/drivers/irqchip/irq-mtk-sysirq.c
@@ -144,7 +144,7 @@ static int __init mtk_sysirq_of_init(struct device_node *node,
chip_data->intpol_base = ioremap(res.start, size);
if (!chip_data->intpol_base) {
pr_err("mtk_sysirq: unable to map sysirq register\n");
- ret = PTR_ERR(chip_data->intpol_base);
+ ret = -ENXIO;
goto out_free;
}
--
2.1.0
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