linux-kernel - [PATCH 4.14 3/8] uio: use request_threaded

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Date:   Wed, 13 Feb 2019 16:29:31 +0000
From:   "Rantala, Tommi T. (Nokia - FI/Espoo)" <tommi.t.rantala@...ia.com>
To:     "stable@...r.kernel.org" <stable@...r.kernel.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Xiubo Li <xiubli@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rantala, Tommi T. (Nokia - FI/Espoo)" <tommi.t.rantala@...ia.com>
Subject: [PATCH 4.14 3/8] uio: use request_threaded_irq instead

From: Xiubo Li <xiubli@...hat.com>

commit 9421e45f5ff3d558cf8b75a8cc0824530caf3453 upstream.

Prepraing for changing to use mutex lock.

Signed-off-by: Xiubo Li <xiubli@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Tommi Rantala <tommi.t.rantala@...ia.com>
---
 drivers/uio/uio.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 288c4b977184..c97945a3f572 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -911,8 +911,9 @@ int __uio_register_device(struct module *owner,
 		 * FDs at the time of unregister and therefore may not be
 		 * freed until they are released.
 		 */
-		ret = request_irq(info->irq, uio_interrupt,
-				  info->irq_flags, info->name, idev);
+		ret = request_threaded_irq(info->irq, NULL, uio_interrupt,
+					   info->irq_flags, info->name, idev);
+
 		if (ret) {
 			info->uio_dev = NULL;
 			goto err_request_irq;
-- 
2.20.1