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Subject[PATCH] extcon: max77693: Fix max77693_muic_probe error handling
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Date
Fix below issues:
1. If request_threaded_irq() fails, current code does not free all requested
irqs.
2. Add missing extcon_dev_unregister() in error path if failed to read revision
number.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
drivers/extcon/extcon-max77693.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index e0ed622..9928c63 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -696,12 +696,8 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev)
IRQF_ONESHOT, muic_irq->name, info);
if (ret) {
dev_err(&pdev->dev,
- "failed: irq request (IRQ: %d,"
- " error :%d)\n",
+ "failed: irq request (IRQ: %d, error :%d)\n",
muic_irq->irq, ret);
-
- for (i = i - 1; i >= 0; i--)
- free_irq(muic_irq->virq, info);
goto err_irq;
}
}
@@ -726,7 +722,7 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev)
MAX77693_MUIC_REG_ID, &id);
if (ret < 0) {
dev_err(&pdev->dev, "failed to read revision number\n");
- goto err_extcon;
+ goto err_read_reg;
}
dev_info(info->dev, "device ID : 0x%x\n", id);

@@ -738,9 +734,13 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev)

return ret;

+err_read_reg:
+ extcon_dev_unregister(info->edev);
err_extcon:
kfree(info->edev);
err_irq:
+ while (--i >= 0)
+ free_irq(muic_irqs[i].virq, info);
err_regmap:
kfree(info);
err_kfree:
--
1.7.9.5




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