diff options
| -rw-r--r-- | drivers/char/rtc.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c index fa92a8af5a5..d1569a0d050 100644 --- a/drivers/char/rtc.c +++ b/drivers/char/rtc.c @@ -78,9 +78,10 @@ #include <linux/wait.h> #include <linux/bcd.h> #include <linux/delay.h> +#include <linux/smp_lock.h> +#include <linux/uaccess.h> #include <asm/current.h> -#include <asm/uaccess.h> #include <asm/system.h> #ifdef CONFIG_X86 @@ -144,8 +145,7 @@ static DEFINE_TIMER(rtc_irq_timer, rtc_dropped_irq, 0, 0); static ssize_t rtc_read(struct file *file, char __user *buf, size_t count, loff_t *ppos); -static int rtc_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg); +static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg); #ifdef RTC_IRQ static unsigned int rtc_poll(struct file *file, poll_table *wait); @@ -719,10 +719,13 @@ static int rtc_do_ioctl(unsigned int cmd, unsigned long arg, int kernel) &wtime, sizeof wtime) ? -EFAULT : 0; } -static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, - unsigned long arg) +static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - return rtc_do_ioctl(cmd, arg, 0); + long ret; + lock_kernel(); + ret = rtc_do_ioctl(cmd, arg, 0); + unlock_kernel(); + return ret; } /* @@ -915,7 +918,7 @@ static const struct file_operations rtc_fops = { #ifdef RTC_IRQ .poll = rtc_poll, #endif - .ioctl = rtc_ioctl, + .unlocked_ioctl = rtc_ioctl, .open = rtc_open, .release = rtc_release, .fasync = rtc_fasync, |