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OpenCloudOS-Kernel
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rtc: BKL pushdown 

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2008-05-20 19:16:37 +02:00 committed by Jonathan Corbet
parent f29b889ede
commit 4333deee6b
1 changed files with 4 additions and 0 deletions
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4
drivers/char/rtc.c
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@ -73,6 +73,7 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
#include <linux/smp_lock.h>
#include <linux/sysctl.h>
#include <linux/wait.h>
#include <linux/bcd.h>
@ -733,6 +734,7 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
* needed here. Or anywhere else in this driver. */
static int rtc_open(struct inode *inode, struct file *file)
{
lock_kernel();
spin_lock_irq(&rtc_lock);
if (rtc_status & RTC_IS_OPEN)
@ -742,10 +744,12 @@ static int rtc_open(struct inode *inode, struct file *file)
rtc_irq_data = 0;
spin_unlock_irq(&rtc_lock);
unlock_kernel();
return 0;
out_busy:
spin_unlock_irq(&rtc_lock);
unlock_kernel();
return -EBUSY;
}