platform_get_irq never returns 0. Don't check for this. Make it clear that
the error path always returns a negative error code.

Signed-off-by: Martin Kaiser <[email protected]>
---
changes in v2
- split the patch in three parts

 drivers/i2c/busses/i2c-exynos5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-exynos5.c b/drivers/i2c/busses/i2c-exynos5.c
index fad1c52857aa..20a9881a0d6c 100644
--- a/drivers/i2c/busses/i2c-exynos5.c
+++ b/drivers/i2c/busses/i2c-exynos5.c
@@ -778,7 +778,7 @@ static int exynos5_i2c_probe(struct platform_device *pdev)
        init_completion(&i2c->msg_complete);
 
        i2c->irq = ret = platform_get_irq(pdev, 0);
-       if (ret <= 0)
+       if (ret < 0)
                goto err_clk;
 
        ret = devm_request_irq(&pdev->dev, i2c->irq, exynos5_i2c_irq,
-- 
2.20.1

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