linux-kernel - [PATCH v2 1/4] Input: ep93xx_keypad - Fix handling of platform_get

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Message-Id: <20200828145744.3636-1-krzk@kernel.org>
Date:   Fri, 28 Aug 2020 16:57:41 +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 1/4] Input: ep93xx_keypad - 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: 60214f058f44 ("Input: ep93xx_keypad - update driver to new core support")
Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>

---

Changes since v1:
1. None
---
 drivers/input/keyboard/ep93xx_keypad.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c
index 7c70492d9d6b..f831f01501d5 100644
--- a/drivers/input/keyboard/ep93xx_keypad.c
+++ b/drivers/input/keyboard/ep93xx_keypad.c
@@ -250,8 +250,8 @@ static int ep93xx_keypad_probe(struct platform_device *pdev)
 	}
 
 	keypad->irq = platform_get_irq(pdev, 0);
-	if (!keypad->irq) {
-		err = -ENXIO;
+	if (keypad->irq < 0) {
+		err = keypad->irq;
 		goto failed_free;
 	}
 
-- 
2.17.1