Thread (14 messages) 14 messages, 3 authors, 2020-09-16

Re: [PATCH v2 2/4] Input: omap4-keypad - Fix handling of platform_get_irq() error

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: 2020-09-16 06:26:18
Also in: linux-arm-kernel, lkml

On Tue, Sep 15, 2020 at 11:06 PM Krzysztof Kozlowski [off-list ref] wrote:
On Wed, 16 Sep 2020 at 02:54, Dmitry Torokhov [off-list ref] wrote:
quoted
On Fri, Aug 28, 2020 at 04:57:42PM +0200, Krzysztof Kozlowski wrote:
quoted
platform_get_irq() returns -ERRNO on error.  In such case comparison
to 0 would pass the check.

Fixes: f3a1ba60dbdb ("Input: omap4-keypad - use platform device helpers")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

---

Changes since v1:
1. None
---
 drivers/input/keyboard/omap4-keypad.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
index 94c94d7f5155..b075f1af0305 100644
--- a/drivers/input/keyboard/omap4-keypad.c
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -240,10 +240,8 @@ static int omap4_keypad_probe(struct platform_device *pdev)
      }

      irq = platform_get_irq(pdev, 0);
-     if (!irq) {
-             dev_err(&pdev->dev, "no keyboard irq assigned\n");
-             return -EINVAL;
-     }
+     if (irq < 0)
+             return -irq;
You must have meant just "irq", right?
Damn it, of course. I'll send a v2 for this.
It's fine, I can fix it up locally.

Thanks.

-- 
Dmitry
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