diff options
Diffstat (limited to 'arch/arm/kernel/sys_arm.c')
| -rw-r--r-- | arch/arm/kernel/sys_arm.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c index ab514903d..ba0d4eda2 100644 --- a/arch/arm/kernel/sys_arm.c +++ b/arch/arm/kernel/sys_arm.c @@ -30,8 +30,6 @@ */ /* proc/system.h */ const char xchg_str[] = "xchg"; -/* arch/dma.h */ -const char dma_str[] = "%s: dma %d not supported\n"; /* * sys_pipe() is the normal C calling standard for creating @@ -241,7 +239,6 @@ asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, struct lock_kernel(); if (!newsp) newsp = regs->ARM_sp; - ret = do_fork(clone_flags, newsp, regs); unlock_kernel(); return ret; @@ -311,16 +308,20 @@ sys_compat_mount (char *devname, char *dirname, char *type, unsigned long flags, asmlinkage int sys_uname (struct old_utsname * name) { static int warned = 0; - + int err; + if (warned == 0) { warned ++; printk (KERN_NOTICE "%s (%d): obsolete uname call\n", current->comm, current->pid); } - if (name && !copy_to_user (name, &system_utsname, sizeof (*name))) - return 0; - return -EFAULT; + if(!name) + return -EFAULT; + down(&uts_sem); + err=copy_to_user (name, &system_utsname, sizeof (*name)); + up(&uts_sem); + return err?-EFAULT:0; } asmlinkage int sys_olduname(struct oldold_utsname * name) @@ -340,6 +341,8 @@ asmlinkage int sys_olduname(struct oldold_utsname * name) if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname))) return -EFAULT; + down(&uts_sem); + error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN); error -= __put_user(0,name->sysname+__OLD_UTS_LEN); error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN); @@ -350,6 +353,9 @@ asmlinkage int sys_olduname(struct oldold_utsname * name) error -= __put_user(0,name->version+__OLD_UTS_LEN); error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN); error -= __put_user(0,name->machine+__OLD_UTS_LEN); + + up(&uts_sem); + error = error ? -EFAULT : 0; return error; |