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-rw-r--r--fs/signalfd.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/fs/signalfd.c b/fs/signalfd.c
index 9f35a37173de..8bee4e570911 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -269,13 +269,12 @@ SYSCALL_DEFINE4(signalfd4, int, ufd, sigset_t __user *, user_mask,
269 if (ufd < 0) 269 if (ufd < 0)
270 kfree(ctx); 270 kfree(ctx);
271 } else { 271 } else {
272 int fput_needed; 272 struct fd f = fdget(ufd);
273 struct file *file = fget_light(ufd, &fput_needed); 273 if (!f.file)
274 if (!file)
275 return -EBADF; 274 return -EBADF;
276 ctx = file->private_data; 275 ctx = f.file->private_data;
277 if (file->f_op != &signalfd_fops) { 276 if (f.file->f_op != &signalfd_fops) {
278 fput_light(file, fput_needed); 277 fdput(f);
279 return -EINVAL; 278 return -EINVAL;
280 } 279 }
281 spin_lock_irq(&current->sighand->siglock); 280 spin_lock_irq(&current->sighand->siglock);
@@ -283,7 +282,7 @@ SYSCALL_DEFINE4(signalfd4, int, ufd, sigset_t __user *, user_mask,
283 spin_unlock_irq(&current->sighand->siglock); 282 spin_unlock_irq(&current->sighand->siglock);
284 283
285 wake_up(&current->sighand->signalfd_wqh); 284 wake_up(&current->sighand->signalfd_wqh);
286 fput_light(file, fput_needed); 285 fdput(f);
287 } 286 }
288 287
289 return ufd; 288 return ufd;