diff options
Diffstat (limited to 'arch/m68k/mvme16x/rtc.c')
| -rw-r--r-- | arch/m68k/mvme16x/rtc.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/arch/m68k/mvme16x/rtc.c b/arch/m68k/mvme16x/rtc.c index 8da9c250d3e1..11ac6f63967a 100644 --- a/arch/m68k/mvme16x/rtc.c +++ b/arch/m68k/mvme16x/rtc.c | |||
| @@ -9,7 +9,6 @@ | |||
| 9 | #include <linux/types.h> | 9 | #include <linux/types.h> |
| 10 | #include <linux/errno.h> | 10 | #include <linux/errno.h> |
| 11 | #include <linux/miscdevice.h> | 11 | #include <linux/miscdevice.h> |
| 12 | #include <linux/smp_lock.h> | ||
| 13 | #include <linux/ioport.h> | 12 | #include <linux/ioport.h> |
| 14 | #include <linux/capability.h> | 13 | #include <linux/capability.h> |
| 15 | #include <linux/fcntl.h> | 14 | #include <linux/fcntl.h> |
| @@ -36,8 +35,7 @@ static const unsigned char days_in_mo[] = | |||
| 36 | 35 | ||
| 37 | static atomic_t rtc_ready = ATOMIC_INIT(1); | 36 | static atomic_t rtc_ready = ATOMIC_INIT(1); |
| 38 | 37 | ||
| 39 | static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, | 38 | static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
| 40 | unsigned long arg) | ||
| 41 | { | 39 | { |
| 42 | volatile MK48T08ptr_t rtc = (MK48T08ptr_t)MVME_RTC_BASE; | 40 | volatile MK48T08ptr_t rtc = (MK48T08ptr_t)MVME_RTC_BASE; |
| 43 | unsigned long flags; | 41 | unsigned long flags; |
| @@ -120,22 +118,15 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, | |||
| 120 | } | 118 | } |
| 121 | 119 | ||
| 122 | /* | 120 | /* |
| 123 | * We enforce only one user at a time here with the open/close. | 121 | * We enforce only one user at a time here with the open/close. |
| 124 | * Also clear the previous interrupt data on an open, and clean | ||
| 125 | * up things on a close. | ||
| 126 | */ | 122 | */ |
| 127 | |||
| 128 | static int rtc_open(struct inode *inode, struct file *file) | 123 | static int rtc_open(struct inode *inode, struct file *file) |
| 129 | { | 124 | { |
| 130 | lock_kernel(); | ||
| 131 | if( !atomic_dec_and_test(&rtc_ready) ) | 125 | if( !atomic_dec_and_test(&rtc_ready) ) |
| 132 | { | 126 | { |
| 133 | atomic_inc( &rtc_ready ); | 127 | atomic_inc( &rtc_ready ); |
| 134 | unlock_kernel(); | ||
| 135 | return -EBUSY; | 128 | return -EBUSY; |
| 136 | } | 129 | } |
| 137 | unlock_kernel(); | ||
| 138 | |||
| 139 | return 0; | 130 | return 0; |
| 140 | } | 131 | } |
| 141 | 132 | ||
| @@ -150,9 +141,9 @@ static int rtc_release(struct inode *inode, struct file *file) | |||
| 150 | */ | 141 | */ |
| 151 | 142 | ||
| 152 | static const struct file_operations rtc_fops = { | 143 | static const struct file_operations rtc_fops = { |
| 153 | .ioctl = rtc_ioctl, | 144 | .unlocked_ioctl = rtc_ioctl, |
| 154 | .open = rtc_open, | 145 | .open = rtc_open, |
| 155 | .release = rtc_release, | 146 | .release = rtc_release, |
| 156 | }; | 147 | }; |
| 157 | 148 | ||
| 158 | static struct miscdevice rtc_dev= | 149 | static struct miscdevice rtc_dev= |
