From: Krzysztof Kozlowski <krzk@kernel.org>
Date: Wed, 16 Sep 2020 00:51:05 +0000 (-0700)
Subject: Input: ep93xx_keypad - fix handling of platform_get_irq() error
X-Git-Tag: v5.8.17~164
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d96fc374d241f51777115af043c35f2727163dd2;p=thirdparty%2Fkernel%2Fstable.git

Input: ep93xx_keypad - fix handling of platform_get_irq() error

[ Upstream commit 7d50f6656dacf085a00beeedbc48b19a37d17881 ]

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@kernel.org>
Link: https://lore.kernel.org/r/20200828145744.3636-1-krzk@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c
index 7c70492d9d6b5..f831f01501d58 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;
 	}