diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2008-05-20 19:16:40 +0200 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2008-07-02 15:06:24 -0600 |
| commit | 5ab0854dd77a520abe7c3b9c7770972fd3e61e90 (patch) | |
| tree | 40baf08bf8edcd1b2d72d13da3adffe3aa37eafc /drivers/sbus | |
| parent | 41012735352e72b8a3f95521817dcad1b2986636 (diff) | |
| download | lwn-5ab0854dd77a520abe7c3b9c7770972fd3e61e90.tar.gz lwn-5ab0854dd77a520abe7c3b9c7770972fd3e61e90.zip | |
sbus-rtc: BKL pushdown
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/sbus')
| -rw-r--r-- | drivers/sbus/char/rtc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/sbus/char/rtc.c b/drivers/sbus/char/rtc.c index 18d18f1a114e..b0429917154d 100644 --- a/drivers/sbus/char/rtc.c +++ b/drivers/sbus/char/rtc.c @@ -12,6 +12,7 @@ */ #include <linux/module.h> +#include <linux/smp_lock.h> #include <linux/types.h> #include <linux/errno.h> #include <linux/miscdevice.h> @@ -213,6 +214,7 @@ static int rtc_open(struct inode *inode, struct file *file) { int ret; + lock_kernel(); spin_lock_irq(&mostek_lock); if (rtc_busy) { ret = -EBUSY; @@ -221,6 +223,7 @@ static int rtc_open(struct inode *inode, struct file *file) ret = 0; } spin_unlock_irq(&mostek_lock); + unlock_kernel(); return ret; } |