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Diffstat (limited to 'arch/m68k/bvme6000/rtc.c')
-rw-r--r--arch/m68k/bvme6000/rtc.c37
1 files changed, 21 insertions, 16 deletions
diff --git a/arch/m68k/bvme6000/rtc.c b/arch/m68k/bvme6000/rtc.c
index a812d03879f..808c9018b11 100644
--- a/arch/m68k/bvme6000/rtc.c
+++ b/arch/m68k/bvme6000/rtc.c
@@ -10,6 +10,7 @@
#include <linux/errno.h>
#include <linux/miscdevice.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/ioport.h>
#include <linux/capability.h>
#include <linux/fcntl.h>
@@ -56,16 +57,16 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
rtc->msr = 0x40;
memset(&wtime, 0, sizeof(struct rtc_time));
do {
- wtime.tm_sec = BCD2BIN(rtc->bcd_sec);
- wtime.tm_min = BCD2BIN(rtc->bcd_min);
- wtime.tm_hour = BCD2BIN(rtc->bcd_hr);
- wtime.tm_mday = BCD2BIN(rtc->bcd_dom);
- wtime.tm_mon = BCD2BIN(rtc->bcd_mth)-1;
- wtime.tm_year = BCD2BIN(rtc->bcd_year);
+ wtime.tm_sec = bcd2bin(rtc->bcd_sec);
+ wtime.tm_min = bcd2bin(rtc->bcd_min);
+ wtime.tm_hour = bcd2bin(rtc->bcd_hr);
+ wtime.tm_mday = bcd2bin(rtc->bcd_dom);
+ wtime.tm_mon = bcd2bin(rtc->bcd_mth)-1;
+ wtime.tm_year = bcd2bin(rtc->bcd_year);
if (wtime.tm_year < 70)
wtime.tm_year += 100;
- wtime.tm_wday = BCD2BIN(rtc->bcd_dow)-1;
- } while (wtime.tm_sec != BCD2BIN(rtc->bcd_sec));
+ wtime.tm_wday = bcd2bin(rtc->bcd_dow)-1;
+ } while (wtime.tm_sec != bcd2bin(rtc->bcd_sec));
rtc->msr = msr;
local_irq_restore(flags);
return copy_to_user(argp, &wtime, sizeof wtime) ?
@@ -113,14 +114,14 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
rtc->t0cr_rtmr = yrs%4;
rtc->bcd_tenms = 0;
- rtc->bcd_sec = BIN2BCD(sec);
- rtc->bcd_min = BIN2BCD(min);
- rtc->bcd_hr = BIN2BCD(hrs);
- rtc->bcd_dom = BIN2BCD(day);
- rtc->bcd_mth = BIN2BCD(mon);
- rtc->bcd_year = BIN2BCD(yrs%100);
+ rtc->bcd_sec = bin2bcd(sec);
+ rtc->bcd_min = bin2bcd(min);
+ rtc->bcd_hr = bin2bcd(hrs);
+ rtc->bcd_dom = bin2bcd(day);
+ rtc->bcd_mth = bin2bcd(mon);
+ rtc->bcd_year = bin2bcd(yrs%100);
if (rtc_tm.tm_wday >= 0)
- rtc->bcd_dow = BIN2BCD(rtc_tm.tm_wday+1);
+ rtc->bcd_dow = bin2bcd(rtc_tm.tm_wday+1);
rtc->t0cr_rtmr = yrs%4 | 0x08;
rtc->msr = msr;
@@ -140,10 +141,14 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
static int rtc_open(struct inode *inode, struct file *file)
{
- if(rtc_status)
+ lock_kernel();
+ if(rtc_status) {
+ unlock_kernel();
return -EBUSY;
+ }
rtc_status = 1;
+ unlock_kernel();
return 0;
}