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Date: Tue, 27 Oct 2020 14:49:39 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Krzysztof Kozlowski <krzk@...nel.org>, Chen-Yu Tsai <wens@...e.org>, Dmitry Torokhov <dmitry.torokhov@...il.com>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 4.14 124/191] Input: sun4i-ps2 - fix handling of platform_get_irq() error From: Krzysztof Kozlowski <krzk@...nel.org> [ Upstream commit cafb3abea6136e59ea534004e5773361e196bb94 ] platform_get_irq() returns -ERRNO on error. In such case comparison to 0 would pass the check. Fixes: e443631d20f5 ("Input: serio - add support for Alwinner A10/A20 PS/2 controller") Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org> Acked-by: Chen-Yu Tsai <wens@...e.org> Link: https://lore.kernel.org/r/20200828145744.3636-4-krzk@kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/input/serio/sun4i-ps2.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/input/serio/sun4i-ps2.c b/drivers/input/serio/sun4i-ps2.c index 04b96fe393397..46512b4d686a8 100644 --- a/drivers/input/serio/sun4i-ps2.c +++ b/drivers/input/serio/sun4i-ps2.c @@ -210,7 +210,6 @@ static int sun4i_ps2_probe(struct platform_device *pdev) struct sun4i_ps2data *drvdata; struct serio *serio; struct device *dev = &pdev->dev; - unsigned int irq; int error; drvdata = kzalloc(sizeof(struct sun4i_ps2data), GFP_KERNEL); @@ -263,14 +262,12 @@ static int sun4i_ps2_probe(struct platform_device *pdev) writel(0, drvdata->reg_base + PS2_REG_GCTL); /* Get IRQ for the device */ - irq = platform_get_irq(pdev, 0); - if (!irq) { - dev_err(dev, "no IRQ found\n"); - error = -ENXIO; + drvdata->irq = platform_get_irq(pdev, 0); + if (drvdata->irq < 0) { + error = drvdata->irq; goto err_disable_clk; } - drvdata->irq = irq; drvdata->serio = serio; drvdata->dev = dev; -- 2.25.1
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