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irqchip: mtk-sysirq: Make mtk_sysirq_of_init return error if ioremap fails

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PTR_ERR(NULL) returns 0 so current code returns 0 if ioremap fails, fix it.

Signed-off-by: Axel Lin <[email protected]>
Reviewed-by: Matthias Brugger <[email protected]>
Cc: Yingjoe Chen <[email protected]>
Cc: [email protected] <[email protected]>
Cc: Jason Cooper <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
This commit is contained in:
Axel Lin 2015-05-21 22:57:34 +08:00 • committed by Thomas Gleixner
commit e1a96fb861
1 changed files with 1 additions and 1 deletions
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2
drivers/irqchip/irq-mtk-sysirq.c
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@ -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;
}