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Commit 3e0420f0 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Jonathan Corbet
Browse files

vmwatchdog: BKL pushdown 



Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 6c111d88

drivers/s390/char/vmwatchdog.c

+6 −1
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include <linux/module.h>

#include <linux/moduleparam.h>

#include <linux/watchdog.h>

#include <linux/smp_lock.h>



#include <asm/ebcdic.h>

#include <asm/io.h>
@@ -131,11 +132,15 @@ static int __init vmwdt_probe(void) 
static int vmwdt_open(struct inode *i, struct file *f)

{

	int ret;

	if (test_and_set_bit(0, &vmwdt_is_open))

	lock_kernel();

	if (test_and_set_bit(0, &vmwdt_is_open)) {

		unlock_kernel();

		return -EBUSY;

	}

	ret = vmwdt_keepalive();

	if (ret)

		clear_bit(0, &vmwdt_is_open);

	unlock_kernel();

	return ret ? ret : nonseekable_open(i, f);

}