fix compat_sys_rt_sigprocmask()

Converting bitmask to 32bit granularity is fine, but we'd better
_do_ something with the result.  Such as "copy it to userland"...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/kernel/signal.c b/kernel/signal.c
index 2a7ae296318539952009c04585657a6d69c26f0e..8d1b785f0dc9e986a217b93cd705bc74f5607356 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2653,7 +2653,7 @@ COMPAT_SYSCALL_DEFINE4(rt_sigprocmask, int, how, compat_sigset_t __user *, nset,
        if (oset) {
                compat_sigset_t old32;
                sigset_to_compat(&old32, &old_set);
-               if (copy_to_user(oset, &old_set, sizeof(sigset_t)))
+               if (copy_to_user(oset, &old32, sizeof(compat_sigset_t)))
                        return -EFAULT;
        }
        return 0;