net: kcm: Replace fput with sockfd_put

The function sockfd_lookup uses fget on the value that is stored in
the file field of the returned structure, so fput should ultimately be
applied to this value.  This can be done directly, but it seems better
to use the specific macro sockfd_put, which does the same thing.

Perform a source code refactoring by using the following semantic patch.

    // <smpl>
    @@
    expression s;
    @@

       s = sockfd_lookup(...)
       ...
    + sockfd_put(s);
    - fput(s->file);
    // </smpl>

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index 56dad9565bc93b9a89004d1fed62539f982d1d99..a9eb616f5521f668a0c7a46e947e6c97509da386 100644 (file)
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -1496,7 +1496,7 @@ static int kcm_attach_ioctl(struct socket *sock, struct kcm_attach *info)
 
        return 0;
 out:
-       fput(csock->file);
+       sockfd_put(csock);
        return err;
 }
 
@@ -1644,7 +1644,7 @@ static int kcm_unattach_ioctl(struct socket *sock, struct kcm_unattach *info)
        spin_unlock_bh(&mux->lock);
 
 out:
-       fput(csock->file);
+       sockfd_put(csock);
        return err;
 }