diff options
Diffstat (limited to 'arch/m68k/bvme6000/rtc.c')
| -rw-r--r-- | arch/m68k/bvme6000/rtc.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/m68k/bvme6000/rtc.c b/arch/m68k/bvme6000/rtc.c index eb63ca6ed94c..703cbc6dc9cc 100644 --- a/arch/m68k/bvme6000/rtc.c +++ b/arch/m68k/bvme6000/rtc.c @@ -11,6 +11,7 @@ #include <linux/miscdevice.h> #include <linux/slab.h> #include <linux/ioport.h> +#include <linux/capability.h> #include <linux/fcntl.h> #include <linux/init.h> #include <linux/poll.h> @@ -46,6 +47,7 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned char msr; unsigned long flags; struct rtc_time wtime; + void __user *argp = (void __user *)arg; switch (cmd) { case RTC_RD_TIME: /* Read the time/date from RTC */ @@ -68,7 +70,7 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, } while (wtime.tm_sec != BCD2BIN(rtc->bcd_sec)); rtc->msr = msr; local_irq_restore(flags); - return copy_to_user((void *)arg, &wtime, sizeof wtime) ? + return copy_to_user(argp, &wtime, sizeof wtime) ? -EFAULT : 0; } case RTC_SET_TIME: /* Set the RTC */ @@ -80,8 +82,7 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, if (!capable(CAP_SYS_ADMIN)) return -EACCES; - if (copy_from_user(&rtc_tm, (struct rtc_time*)arg, - sizeof(struct rtc_time))) + if (copy_from_user(&rtc_tm, argp, sizeof(struct rtc_time))) return -EFAULT; yrs = rtc_tm.tm_year; |