switch signalfd4() to fget_light/fput_light

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

1 files changed, 4 insertions, 3 deletions

diff --git a/fs/signalfd.c b/fs/signalfd.c
index 7ae2a574cb25..9f35a37173de 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -269,12 +269,13 @@ SYSCALL_DEFINE4(signalfd4, int, ufd, sigset_t __user *, user_mask,
                 if (ufd < 0)
                         kfree(ctx);
         } else {
-                struct file *file = fget(ufd);
+                int fput_needed;
+                struct file *file = fget_light(ufd, &fput_needed);
                 if (!file)
                         return -EBADF;
                 ctx = file->private_data;
                 if (file->f_op != &signalfd_fops) {
-                        fput(file);
+                        fput_light(file, fput_needed);
                         return -EINVAL;
                 }
                 spin_lock_irq(&current->sighand->siglock);
@@ -282,7 +283,7 @@ SYSCALL_DEFINE4(signalfd4, int, ufd, sigset_t __user *, user_mask,
                 spin_unlock_irq(&current->sighand->siglock);
 
                 wake_up(&current->sighand->signalfd_wqh);
-                fput(file);
+                fput_light(file, fput_needed);
         }
 
         return ufd;