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From: Tong Zhang <ztong0001@gmail.com>
To: Ian Abbott <abbotti@mev.co.uk>,
	H Hartley Sweeten <hsweeten@visionengravers.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Tong Zhang <ztong0001@gmail.com>,
	"Alexander A. Klimov" <grandmaster@al2klimov.de>,
	devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org
Subject: [PATCH] staging: comedi: das800: fix request_irq() warn
Date: Tue, 16 Mar 2021 18:42:26 -0400	[thread overview]
Message-ID: <20210316224227.348310-1-ztong0001@gmail.com> (raw)
In-Reply-To: <92b7c57b-b645-9965-8157-4ca76a803cba@mev.co.uk>

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@mev.co.uk>
Signed-off-by: Tong Zhang <ztong0001@gmail.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


  reply	other threads:[~2021-03-16 22:43 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-14  3:57 [PATCH] staging: comedi: replace slash in name Tong Zhang
2021-03-15 10:44 ` Ian Abbott
2021-03-15 10:48   ` Ian Abbott
2021-03-15 19:58     ` [PATCH v2] staging: comedi: cb_pcidas64: fix request_irq() warn Tong Zhang
2021-03-16 10:31       ` Ian Abbott
2021-03-15 20:00     ` [PATCH] staging: comedi: replace slash in name Tong Zhang
2021-03-16 10:37       ` Ian Abbott
2021-03-16 22:42         ` Tong Zhang [this message]
2021-03-17  5:14           ` [PATCH] staging: comedi: das800: fix request_irq() warn Dan Carpenter
     [not found]             ` <CAA5qM4BcQ6+aa1C3_28zLVojwLduK-WZwsEftuasJgo8z0t0ew@mail.gmail.com>
2021-03-17  6:52               ` Dan Carpenter
2021-03-17 22:43                 ` Tong Zhang
2021-03-17 12:48           ` Ian Abbott
2021-03-19  3:47             ` [PATCH v2] " Tong Zhang
2021-03-19  3:48             ` [PATCH] " Tong Zhang
2021-03-16 22:42         ` [PATCH] staging: comedi: replace slash in name Tong Zhang

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