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Commit b2f2ba01 authored by Jonathan Corbet's avatar Jonathan Corbet
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printer gadget: BKL pushdown 



Add explicit lock_kernel() calls to printer_open()

Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 26ce4f06

drivers/usb/gadget/printer.c

+2 −1
Original line number Diff line number Diff line
@@ -462,6 +462,7 @@ printer_open(struct inode *inode, struct file *fd) 
	unsigned long		flags;

	int			ret = -EBUSY;



	lock_kernel();

	dev = container_of(inode->i_cdev, struct printer_dev, printer_cdev);



	spin_lock_irqsave(&dev->lock, flags);
@@ -477,7 +478,7 @@ printer_open(struct inode *inode, struct file *fd) 
	spin_unlock_irqrestore(&dev->lock, flags);



	DBG(dev, "printer_open returned %x\n", ret);



	unlock_kernel();

	return ret;

}