linux-kernel - [PATCH v2 4/4] Input: sun4i-ps2 - Fix handling of platform_get

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Message-Id: <20200828145744.3636-4-krzk@kernel.org>
Date:   Fri, 28 Aug 2020 16:57:44 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2 4/4] Input: sun4i-ps2 - Fix handling of platform_get_irq() error

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>

---

Changes since v1:
1. None
---
 drivers/input/serio/sun4i-ps2.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/input/serio/sun4i-ps2.c b/drivers/input/serio/sun4i-ps2.c
index a681a2c04e39..7da1ea8741fc 100644
--- a/drivers/input/serio/sun4i-ps2.c
+++ b/drivers/input/serio/sun4i-ps2.c
@@ -265,9 +265,8 @@ static int sun4i_ps2_probe(struct platform_device *pdev)
 
 	/* Get IRQ for the device */
 	irq = platform_get_irq(pdev, 0);
-	if (!irq) {
-		dev_err(dev, "no IRQ found\n");
-		error = -ENXIO;
+	if (irq < 0) {
+		error = irq;
 		goto err_disable_clk;
 	}
 
-- 
2.17.1