fcntl: don't leak fd reference when fixup_compat_flock fails

Currently we just return err here, but we need to put the fd reference
first.

Fixes: 94073ad77fff (fs/locks: don't mess with the address limit in compat_fcntl64)
Signed-off-by: Jeff Layton <jlayton@redhat.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/fs/fcntl.c b/fs/fcntl.c
index 30f47d0f74a0..e15bcc4265d0 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -632,9 +632,8 @@ COMPAT_SYSCALL_DEFINE3(fcntl64, unsigned int, fd, unsigned int, cmd,
                 if (err)
                         break;
                 err = fixup_compat_flock(&flock);
-                if (err)
-                        return err;
-                err = put_compat_flock(&flock, compat_ptr(arg));
+                if (!err)
+                        err = put_compat_flock(&flock, compat_ptr(arg));
                 break;
         case F_GETLK64:
         case F_OFD_GETLK: