linux-kernel - [PATCH 2/3] usb: gadget: fsl_qe_udc: do not use tasklet_disable before tasklet

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Message-Id: <1351670761-26749-2-git-send-email-xtfeng@gmail.com>
Date:	Wed, 31 Oct 2012 16:06:00 +0800
From:	Xiaotian Feng <xtfeng@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Xiaotian Feng <xtfeng@...il.com>,
	Xiaotian Feng <dannyfeng@...cent.com>,
	Li Yang <leoli@...escale.com>, Felipe Balbi <balbi@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH 2/3] usb: gadget: fsl_qe_udc: do not use tasklet_disable before tasklet_kill

If tasklet_disable() is called before related tasklet handled,
tasklet_kill will never be finished. tasklet_kill is enough.

Signed-off-by: Xiaotian Feng <dannyfeng@...cent.com>
Cc: Li Yang <leoli@...escale.com>
Cc: Felipe Balbi <balbi@...com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-usb@...r.kernel.org
Cc: linuxppc-dev@...ts.ozlabs.org
---
 drivers/usb/gadget/fsl_qe_udc.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c
index b09452d..4ad3b82 100644
--- a/drivers/usb/gadget/fsl_qe_udc.c
+++ b/drivers/usb/gadget/fsl_qe_udc.c
@@ -2661,7 +2661,7 @@ static int __devexit qe_udc_remove(struct platform_device *ofdev)
 	usb_del_gadget_udc(&udc->gadget);
 
 	udc->done = &done;
-	tasklet_disable(&udc->rx_tasklet);
+	tasklet_kill(&udc->rx_tasklet);
 
 	if (udc->nullmap) {
 		dma_unmap_single(udc->gadget.dev.parent,
@@ -2698,8 +2698,6 @@ static int __devexit qe_udc_remove(struct platform_device *ofdev)
 	free_irq(udc->usb_irq, udc);
 	irq_dispose_mapping(udc->usb_irq);
 
-	tasklet_kill(&udc->rx_tasklet);
-
 	iounmap(udc->usb_regs);
 
 	device_unregister(&udc->gadget.dev);
-- 
1.7.9.5

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