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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-31 18:43:41 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-31 18:43:41 +0200 |
| commit | 85e9ca333d03fbd56b9e123c8456f0d98e20faad (patch) | |
| tree | 7bb15ada5f536950efa23ad60ea9eea60380ca1c /arch/m68k/mvme16x | |
| parent | a300bec952127d9a15e666b391bb35c9aecb3002 (diff) | |
| parent | 6e86841d05f371b5b9b86ce76c02aaee83352298 (diff) | |
| download | kernel-crypto-85e9ca333d03fbd56b9e123c8456f0d98e20faad.tar.gz kernel-crypto-85e9ca333d03fbd56b9e123c8456f0d98e20faad.tar.xz kernel-crypto-85e9ca333d03fbd56b9e123c8456f0d98e20faad.zip | |
Merge branch 'linus' into timers/hpet
Diffstat (limited to 'arch/m68k/mvme16x')
| -rw-r--r-- | arch/m68k/mvme16x/rtc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/m68k/mvme16x/rtc.c b/arch/m68k/mvme16x/rtc.c index e341387787a..432a9f13b2e 100644 --- a/arch/m68k/mvme16x/rtc.c +++ b/arch/m68k/mvme16x/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> @@ -127,11 +128,14 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, static int rtc_open(struct inode *inode, struct file *file) { + lock_kernel(); if( !atomic_dec_and_test(&rtc_ready) ) { atomic_inc( &rtc_ready ); + unlock_kernel(); return -EBUSY; } + unlock_kernel(); return 0; } |