futex: Update futex_q lock_ptr on requeue proxy lock

[safe/jmp/linux-2.6] / kernel / signal.c

diff --git a/kernel/signal.c b/kernel/signal.c
index f268372..64c5dee 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2464,10 +2464,12 @@ do_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, unsigned long s
                int ss_flags;
 
                error = -EFAULT;
-               if (!access_ok(VERIFY_READ, uss, sizeof(*uss))
-                   || __get_user(ss_sp, &uss->ss_sp)
-                   || __get_user(ss_flags, &uss->ss_flags)
-                   || __get_user(ss_size, &uss->ss_size))
+               if (!access_ok(VERIFY_READ, uss, sizeof(*uss)))
+                       goto out;
+               error = __get_user(ss_sp, &uss->ss_sp) |
+                       __get_user(ss_flags, &uss->ss_flags) |
+                       __get_user(ss_size, &uss->ss_size);
+               if (error)
                        goto out;
 
                error = -EPERM;