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Commit b5b4aa67 authored by Jonathan Corbet's avatar Jonathan Corbet
Browse files

usbdev: BKL pushdown 



Add explicit lock_kernel() calls to usbdev_open()

Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 1af46fd7

drivers/usb/core/devio.c

+2 −0
Original line number Diff line number Diff line
@@ -565,6 +565,7 @@ static int usbdev_open(struct inode *inode, struct file *file) 
	struct dev_state *ps;

	int ret;



	lock_kernel();

	/* Protect against simultaneous removal or release */

	mutex_lock(&usbfs_mutex);
@@ -611,6 +612,7 @@ static int usbdev_open(struct inode *inode, struct file *file) 
	if (ret)

		kfree(ps);

	mutex_unlock(&usbfs_mutex);

	unlock_kernel();

	return ret;

}