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OpenCloudOS-Kernel
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ds1286: BKL pushdown 

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2008-05-20 19:15:49 +02:00 committed by Jonathan Corbet
parent 514bcc66d4
commit 7ccef46320
1 changed files with 4 additions and 0 deletions
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4
drivers/char/ds1286.c
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@ -27,6 +27,7 @@
* option) any later version. * option) any later version.
*/ */
#include <linux/ds1286.h> #include <linux/ds1286.h>
#include <linux/smp_lock.h>
#include <linux/types.h> #include <linux/types.h>
#include <linux/errno.h> #include <linux/errno.h>
#include <linux/miscdevice.h> #include <linux/miscdevice.h>
@ -252,6 +253,7 @@ static int ds1286_ioctl(struct inode *inode, struct file *file,
static int ds1286_open(struct inode *inode, struct file *file) static int ds1286_open(struct inode *inode, struct file *file)
{ {
lock_kernel();
spin_lock_irq(&ds1286_lock); spin_lock_irq(&ds1286_lock);
if (ds1286_status & RTC_IS_OPEN) if (ds1286_status & RTC_IS_OPEN)
@ -260,10 +262,12 @@ static int ds1286_open(struct inode *inode, struct file *file)
ds1286_status |= RTC_IS_OPEN; ds1286_status |= RTC_IS_OPEN;
spin_unlock_irq(&ds1286_lock); spin_unlock_irq(&ds1286_lock);
unlock_kernel();
return 0; return 0;
out_busy: out_busy:
spin_lock_irq(&ds1286_lock); spin_lock_irq(&ds1286_lock);
unlock_kernel();
return -EBUSY; return -EBUSY;
} }