linux-kernel - [PATCH 3/5] USB: use DECLARE_COMPLETION

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Message-Id: <1260974161-6934-4-git-send-email-yong.zhang0@gmail.com>
Date:	Wed, 16 Dec 2009 22:35:59 +0800
From:	Yong Zhang <yong.zhang0@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...e.de>,
	Anton Vorontsov <avorontsov@...mvista.com>,
	Kay Sievers <kay.sievers@...y.org>,
	Li Yang <leoli@...escale.com>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	linux-usb@...r.kernel.org
Subject: [PATCH 3/5] USB: use DECLARE_COMPLETION_ONSTACK for non-constant completion

The _ONSTACK variant should be used for on-stack completion,
otherwise it will break lockdep.

Signed-off-by: Yong Zhang <yong.zhang0@...il.com>
Cc: Greg Kroah-Hartman <gregkh@...e.de>
Cc: Anton Vorontsov <avorontsov@...mvista.com>
Cc: Kay Sievers <kay.sievers@...y.org>
Cc: Li Yang <leoli@...escale.com>
Cc: David Brownell <dbrownell@...rs.sourceforge.net>
Cc: linux-usb@...r.kernel.org
---
 drivers/usb/gadget/fsl_qe_udc.c   |    2 +-
 drivers/usb/gadget/fsl_udc_core.c |    2 +-
 drivers/usb/gadget/langwell_udc.c |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c
index 7881f12..5e9e921 100644
--- a/drivers/usb/gadget/fsl_qe_udc.c
+++ b/drivers/usb/gadget/fsl_qe_udc.c
@@ -2694,7 +2694,7 @@ static int __devexit qe_udc_remove(struct of_device *ofdev)
 	struct qe_ep *ep;
 	unsigned int size;
 
-	DECLARE_COMPLETION(done);
+	DECLARE_COMPLETION_ONSTACK(done);
 
 	if (!udc_controller)
 		return -ENODEV;
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index fa3d142..e9e4de3 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -2399,7 +2399,7 @@ static int __exit fsl_udc_remove(struct platform_device *pdev)
 {
 	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	DECLARE_COMPLETION(done);
+	DECLARE_COMPLETION_ONSTACK(done);
 
 	if (!udc_controller)
 		return -ENODEV;
diff --git a/drivers/usb/gadget/langwell_udc.c b/drivers/usb/gadget/langwell_udc.c
index a391351..ddfe015 100644
--- a/drivers/usb/gadget/langwell_udc.c
+++ b/drivers/usb/gadget/langwell_udc.c
@@ -2903,7 +2903,7 @@ static void langwell_udc_remove(struct pci_dev *pdev)
 {
 	struct langwell_udc	*dev = the_controller;
 
-	DECLARE_COMPLETION(done);
+	DECLARE_COMPLETION_ONSTACK(done);
 
 	BUG_ON(dev->driver);
 	DBG(dev, "---> %s()\n", __func__);
-- 
1.6.3.3

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