linux-kernel - [PATCH] staging: comedi: das800: fix request

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Message-Id: <20210316224227.348310-1-ztong0001@gmail.com>
Date:   Tue, 16 Mar 2021 18:42:26 -0400
From:   Tong Zhang <ztong0001@...il.com>
To:     Ian Abbott <abbotti@....co.uk>,
        H Hartley Sweeten <hsweeten@...ionengravers.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Tong Zhang <ztong0001@...il.com>,
        "Alexander A. Klimov" <grandmaster@...klimov.de>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: comedi: das800: fix request_irq() warn

request_irq() wont accept a name which contains slash so we need to
repalce it with something else -- otherwise it will trigger a warning
and the entry in /proc/irq/ will not be created
since the .name might be used by userspace and we don't want to break
userspace, so we are changing the parameters passed to request_irq()

Suggested-by: Ian Abbott <abbotti@....co.uk>
Signed-off-by: Tong Zhang <ztong0001@...il.com>
---
 drivers/staging/comedi/drivers/das800.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index 2881808d6606..bc08324f422f 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -668,7 +668,7 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	dev->board_name = board->name;
 
 	if (irq > 1 && irq <= 7) {
-		ret = request_irq(irq, das800_interrupt, 0, dev->board_name,
+		ret = request_irq(irq, das800_interrupt, 0, "das800",
 				  dev);
 		if (ret == 0)
 			dev->irq = irq;
-- 
2.25.1