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Commit 3462032d authored by Jonathan Corbet's avatar Jonathan Corbet
Browse files

divamnt: BKL pushdown 



Put explicit lock_kernel() calls into maint_open().

Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent a237f3bb

drivers/isdn/hardware/eicon/divamnt.c

+11 −5
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/poll.h>

#include <linux/smp_lock.h>

#include <asm/uaccess.h>



#include "platform.h"
@@ -127,14 +128,19 @@ static unsigned int maint_poll(struct file *file, poll_table * wait) 


static int maint_open(struct inode *ino, struct file *filep)

{

	int ret;



	lock_kernel();

	/* only one open is allowed, so we test

	   it atomically */

	if (test_and_set_bit(0, &opened))

		return (-EBUSY);



		ret = -EBUSY;

	else {

		filep->private_data = NULL;



	return nonseekable_open(ino, filep);

		ret = nonseekable_open(ino, filep);

	}

	unlock_kernel();

	return ret;

}



static int maint_close(struct inode *ino, struct file *filep)