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sparc64-rtc: BKL pushdown

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Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2008-05-20 19:16:50 +02:00 committed by Jonathan Corbet
parent ee30d64e42
commit 09de36137c
1 changed files with 6 additions and 1 deletions
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7
arch/sparc64/kernel/time.c
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@ -11,6 +11,7 @@
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/smp_lock.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/string.h>
@ -1659,10 +1660,14 @@ static int mini_rtc_ioctl(struct inode *inode, struct file *file,
static int mini_rtc_open(struct inode *inode, struct file *file)
{
if (mini_rtc_status & RTC_IS_OPEN)
lock_kernel();
if (mini_rtc_status & RTC_IS_OPEN) {
unlock_kernel();
return -EBUSY;
}
mini_rtc_status |= RTC_IS_OPEN;
unlock_kernel();
return 0;
}