From: Krzysztof Kozlowski <krzk@kernel.org>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 3/4] Input: twl4030_keypad - Fix handling of platform_get_irq() error
Date: Fri, 28 Aug 2020 16:57:43 +0200 [thread overview]
Message-ID: <20200828145744.3636-3-krzk@kernel.org> (raw)
In-Reply-To: <20200828145744.3636-1-krzk@kernel.org>
platform_get_irq() returns -ERRNO on error. In such case casting to
unsigned and comparing to 0 would pass the check.
Fixes: 7abf38d6d13c ("Input: twl4030-keypad - add device tree support")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
Changes since v1:
1. Fix also casting return value to unsigned.
---
drivers/input/keyboard/twl4030_keypad.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c
index af3a6824f1a4..77e0743a3cf8 100644
--- a/drivers/input/keyboard/twl4030_keypad.c
+++ b/drivers/input/keyboard/twl4030_keypad.c
@@ -50,7 +50,7 @@ struct twl4030_keypad {
bool autorepeat;
unsigned int n_rows;
unsigned int n_cols;
- unsigned int irq;
+ int irq;
struct device *dbg_dev;
struct input_dev *input;
@@ -376,10 +376,8 @@ static int twl4030_kp_probe(struct platform_device *pdev)
}
kp->irq = platform_get_irq(pdev, 0);
- if (!kp->irq) {
- dev_err(&pdev->dev, "no keyboard irq assigned\n");
- return -EINVAL;
- }
+ if (kp->irq < 0)
+ return kp->irq;
error = matrix_keypad_build_keymap(keymap_data, NULL,
TWL4030_MAX_ROWS,
--
2.17.1
next prev parent reply other threads:[~2020-08-28 14:58 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-28 14:57 [PATCH v2 1/4] Input: ep93xx_keypad - Fix handling of platform_get_irq() error Krzysztof Kozlowski
2020-08-28 14:57 ` [PATCH v2 2/4] Input: omap4-keypad " Krzysztof Kozlowski
2020-09-16 0:53 ` Dmitry Torokhov
2020-09-16 6:06 ` Krzysztof Kozlowski
2020-09-16 6:25 ` Dmitry Torokhov
2020-08-28 14:57 ` Krzysztof Kozlowski [this message]
2020-08-28 14:57 ` [PATCH v2 4/4] Input: sun4i-ps2 " Krzysztof Kozlowski
2020-08-28 15:34 ` Chen-Yu Tsai
2020-09-16 1:01 ` Dmitry Torokhov
2020-09-16 6:08 ` Krzysztof Kozlowski
2020-09-11 15:31 ` [PATCH v2 1/4] Input: ep93xx_keypad " Krzysztof Kozlowski
2020-09-14 6:51 ` Dmitry Torokhov
2020-09-15 16:05 ` Krzysztof Kozlowski
2020-09-16 0:55 ` Dmitry Torokhov
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