[PATCH v7 4/6] extcon: max8997: Fix handling error code of regmap_irq_get_virq()

Krzysztof Kozlowski
2016-06-01T09:53:59Z

The regmap_irq_get_virq() can return negative ERRNO, so its result
should not be stored in unsigned int because error would be ignored.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Acked-by: Chanwoo Choi <cw00.choi-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
---
drivers/extcon/extcon-max8997.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index 68754ac2c8ea..0afa3e8b5dc3 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -660,11 +660,11 @@ static int max8997_muic_probe(struct platform_device *pdev)

for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) {
struct max8997_muic_irq *muic_irq = &muic_irqs[i];
- unsigned int virq = 0;
+ int virq = 0;

virq = regmap_irq_get_virq(max8997->irq_data_muic,
muic_irq->irq);
- if (!virq) {
+ if (virq <= 0) {
ret = -EINVAL;
goto err_irq;