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authorDavid S. Miller <davem@davemloft.net>2008-04-03 14:33:42 -0700
committerDavid S. Miller <davem@davemloft.net>2008-04-03 14:33:42 -0700
commit3bb5da3837cc1aa17736b05139c9a22c3794851a (patch)
treec92d5684a866542b1cb20641607ac1643ce03a47 /arch/s390
parent7feb49c82a74bc7c091b8ab2a3f96baa33d08ece (diff)
parent9597362d354f8655ece324b01d0c640a0e99c077 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/lib/uaccess_pt.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c
index 7e8efaade2ea..5efdfe9f5e76 100644
--- a/arch/s390/lib/uaccess_pt.c
+++ b/arch/s390/lib/uaccess_pt.c
@@ -406,6 +406,8 @@ int futex_atomic_cmpxchg_pt(int __user *uaddr, int oldval, int newval)
{
int ret;
+ if (!current->mm)
+ return -EFAULT;
spin_lock(&current->mm->page_table_lock);
uaddr = (int __user *) __dat_user_addr((unsigned long) uaddr);
if (!uaddr) {