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Commit dec81cf1 authored by Andrzej Pietrasiewicz's avatar Andrzej Pietrasiewicz Committed by Felipe Balbi
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usb: gadget: printer: eliminate file global printer_mutex 



The mutex is a legacy after semi-automatic Big Kernel Lock removal.
printer_open() does its own locking, so no need to duplicate it.

Signed-off-by: default avatarAndrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent a844715d

drivers/usb/gadget/legacy/printer.c

+0 −3
Original line number Diff line number Diff line
@@ -48,7 +48,6 @@ USB_GADGET_COMPOSITE_OPTIONS(); 
#define DRIVER_DESC		"Printer Gadget"

#define DRIVER_VERSION		"2007 OCT 06"



static DEFINE_MUTEX(printer_mutex);

static const char shortname [] = "printer";

static const char driver_desc [] = DRIVER_DESC;
@@ -420,7 +419,6 @@ printer_open(struct inode *inode, struct file *fd) 
	unsigned long		flags;

	int			ret = -EBUSY;



	mutex_lock(&printer_mutex);

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



	spin_lock_irqsave(&dev->lock, flags);
@@ -436,7 +434,6 @@ printer_open(struct inode *inode, struct file *fd) 
	spin_unlock_irqrestore(&dev->lock, flags);



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

	mutex_unlock(&printer_mutex);

	return ret;

}