get_compat_sigset()

similar to put_compat_sigset()

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

1 files changed, 1 insertions, 3 deletions

diff --git a/fs/signalfd.c b/fs/signalfd.c
index d2c434112f42..9de5beeb771d 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -312,15 +312,13 @@ COMPAT_SYSCALL_DEFINE4(signalfd4, int, ufd,
                      compat_size_t, sigsetsize,
                      int, flags)
 {
-        compat_sigset_t ss32;
         sigset_t tmp;
         sigset_t __user *ksigmask;
 
         if (sigsetsize != sizeof(compat_sigset_t))
                 return -EINVAL;
-        if (copy_from_user(&ss32, sigmask, sizeof(ss32)))
+        if (get_compat_sigset(&tmp, sigmask))
                 return -EFAULT;
-        sigset_from_compat(&tmp, &ss32);
         ksigmask = compat_alloc_user_space(sizeof(sigset_t));
         if (copy_to_user(ksigmask, &tmp, sizeof(sigset_t)))
                 return -EFAULT;