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Date: Mon, 13 Sep 2021 15:15:12 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Sergey Shtylyov <s.shtylyov@....ru>, George Cherian <george.cherian@...vell.com>, Wolfram Sang <wsa@...nel.org>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.14 258/334] i2c: xlp9xx: fix main IRQ check From: Sergey Shtylyov <s.shtylyov@....ru> [ Upstream commit 661e8a88e8317eb9ffe69c69d6cb4876370fe7e2 ] Iff platform_get_irq() returns 0 for the main IRQ, the driver's probe() method will return 0 early (as if the method's call was successful). Let's consider IRQ0 valid for simplicity -- devm_request_irq() can always override that decision... Fixes: 2bbd681ba2b ("i2c: xlp9xx: Driver for Netlogic XLP9XX/5XX I2C controller") Signed-off-by: Sergey Shtylyov <s.shtylyov@....ru> Reviewed-by: George Cherian <george.cherian@...vell.com> Signed-off-by: Wolfram Sang <wsa@...nel.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/i2c/busses/i2c-xlp9xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-xlp9xx.c b/drivers/i2c/busses/i2c-xlp9xx.c index f2241cedf5d3..6d24dc385522 100644 --- a/drivers/i2c/busses/i2c-xlp9xx.c +++ b/drivers/i2c/busses/i2c-xlp9xx.c @@ -517,7 +517,7 @@ static int xlp9xx_i2c_probe(struct platform_device *pdev) return PTR_ERR(priv->base); priv->irq = platform_get_irq(pdev, 0); - if (priv->irq <= 0) + if (priv->irq < 0) return priv->irq; /* SMBAlert irq */ priv->alert_data.irq = platform_get_irq(pdev, 1); -- 2.30.2
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