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usb: hsotg: samsung: Protect the udc_stop routine with spinlock

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Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Lukasz Majewski 2012-06-14 10:02:25 +02:00 committed by Felipe Balbi
parent 22258f4906
commit 2b19a52cc8
1 changed files with 5 additions and 0 deletions
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5
drivers/usb/gadget/s3c-hsotg.c
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@ -2988,6 +2988,7 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget,
struct usb_gadget_driver *driver)
{
struct s3c_hsotg *hsotg = to_hsotg(gadget);
unsigned long flags = 0;
int ep;
if (!hsotg)
@ -3000,6 +3001,8 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget,
for (ep = 0; ep < hsotg->num_of_eps; ep++)
s3c_hsotg_ep_disable(&hsotg->eps[ep].ep);
spin_lock_irqsave(&hsotg->lock, flags);
s3c_hsotg_phy_disable(hsotg);
regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies), hsotg->supplies);
@ -3007,6 +3010,8 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget,
hsotg->gadget.speed = USB_SPEED_UNKNOWN;
hsotg->gadget.dev.driver = NULL;
spin_unlock_irqrestore(&hsotg->lock, flags);
dev_info(hsotg->dev, "unregistered gadget driver '%s'\n",
driver->driver.name);