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Commit 48b81880 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Jonathan Corbet
Browse files

hpet: BKL pushdown 



Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 986f8b8c

drivers/char/hpet.c

+4 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include <linux/interrupt.h>

#include <linux/module.h>

#include <linux/kernel.h>

#include <linux/smp_lock.h>

#include <linux/types.h>

#include <linux/miscdevice.h>

#include <linux/major.h>
@@ -193,6 +194,7 @@ static int hpet_open(struct inode *inode, struct file *file) 
	if (file->f_mode & FMODE_WRITE)

		return -EINVAL;



	lock_kernel();

	spin_lock_irq(&hpet_lock);



	for (devp = NULL, hpetp = hpets; hpetp && !devp; hpetp = hpetp->hp_next)
@@ -207,6 +209,7 @@ static int hpet_open(struct inode *inode, struct file *file) 


	if (!devp) {

		spin_unlock_irq(&hpet_lock);

		unlock_kernel();

		return -EBUSY;

	}
@@ -214,6 +217,7 @@ static int hpet_open(struct inode *inode, struct file *file) 
	devp->hd_irqdata = 0;

	devp->hd_flags |= HPET_OPEN;

	spin_unlock_irq(&hpet_lock);

	unlock_kernel();



	return 0;

}