Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / arch / sparc / kernel / sys_sparc.c

diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c
index 5a220d6..8318dc6 100644 (file)
--- a/arch/sparc/kernel/sys_sparc.c
+++ b/arch/sparc/kernel/sys_sparc.c
@@ -469,21 +469,23 @@ sys_rt_sigaction(int sig,
 
 asmlinkage int sys_getdomainname(char __user *name, int len)
 {
-       int nlen;
-       int err = -EFAULT;
+       int nlen, err;
        
+       if (len < 0)
+               return -EINVAL;
+
        down_read(&uts_sem);
        
        nlen = strlen(vx_new_uts(domainname)) + 1;
+       err = -EINVAL;
+       if (nlen > len)
+               goto out;
 
-       if (nlen < len)
-               len = nlen;
-       if (len > __NEW_UTS_LEN)
-               goto done;
-       if (copy_to_user(name, vx_new_uts(domainname), len))
-               goto done;
-       err = 0;
-done:
+       err = -EFAULT;
+       if (!copy_to_user(name, vx_new_uts(domainname), nlen))
+               err = 0;
+
+out:
        up_read(&uts_sem);
        return err;
 }