linux-kernel - [PATCH 04/10] Input: serio: Fix platform_get

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Message-Id: <1510946132-13554-5-git-send-email-arvind.yadav.cs@gmail.com>
Date:   Sat, 18 Nov 2017 00:45:26 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     dmitry.torokhov@...il.com, maxime.ripard@...e-electrons.com,
        wens@...e.org, linux@...ck-us.net, wsa@...-dreams.de,
        daniel.thompson@...aro.org, mcuos.com@...il.com
Cc:     linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 04/10] Input: serio: Fix platform_get_irq's error checking

The platform_get_irq() function returns negative if an error occurs.
zero or positive number on success. platform_get_irq() error checking
for zero is not correct.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/input/serio/sun4i-ps2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/serio/sun4i-ps2.c b/drivers/input/serio/sun4i-ps2.c
index 04b96fe..405c82f 100644
--- a/drivers/input/serio/sun4i-ps2.c
+++ b/drivers/input/serio/sun4i-ps2.c
@@ -264,7 +264,7 @@ static int sun4i_ps2_probe(struct platform_device *pdev)
 
 	/* Get IRQ for the device */
 	irq = platform_get_irq(pdev, 0);
-	if (!irq) {
+	if (irq < 0) {
 		dev_err(dev, "no IRQ found\n");
 		error = -ENXIO;
 		goto err_disable_clk;
-- 
2.7.4