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Subject[PATCH 07/10 v3] Input: sun4i-ts: Handle return value of platform_get_irq
Date
platform_get_irq() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
changes in v2 :
ts->irq is unsigned. used int irq variable.
changes in v3 :
Add failure case '<= 0' instead of '< 0'. IRQ0 is not valid.

drivers/input/touchscreen/sun4i-ts.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/sun4i-ts.c b/drivers/input/touchscreen/sun4i-ts.c
index d2e14d9..315f26b 100644
--- a/drivers/input/touchscreen/sun4i-ts.c
+++ b/drivers/input/touchscreen/sun4i-ts.c
@@ -251,6 +251,7 @@ static int sun4i_ts_probe(struct platform_device *pdev)
bool ts_attached;
u32 tp_sensitive_adjust = 15;
u32 filter_type = 1;
+ int irq;

ts = devm_kzalloc(dev, sizeof(struct sun4i_ts_data), GFP_KERNEL);
if (!ts)
@@ -314,7 +315,10 @@ static int sun4i_ts_probe(struct platform_device *pdev)
if (IS_ERR(ts->base))
return PTR_ERR(ts->base);

- ts->irq = platform_get_irq(pdev, 0);
+ irq = platform_get_irq(pdev, 0);
+ if (irq <= 0)
+ return irq;
+ ts->irq = irq;
error = devm_request_irq(dev, ts->irq, sun4i_ts_irq, 0, "sun4i-ts", ts);
if (error)
return error;
--
2.7.4
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