xenbus: drop useless LIST_HEAD in xenbus_write_watch() and xenbus_file_write()

Drop LIST_HEAD where the variable it declares is never used.

The declarations were introduced with the file, but the declared
variables were not used.

Fixes: 1107ba885e469 ("xen: add xenfs to allow usermode <-> Xen interaction")
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c
index 0782ff3..faf452d 100644 (file)
--- a/drivers/xen/xenbus/xenbus_dev_frontend.c
+++ b/drivers/xen/xenbus/xenbus_dev_frontend.c
@@ -465,7 +465,6 @@ static int xenbus_write_watch(unsigned msg_type, struct xenbus_file_priv *u)
        struct watch_adapter *watch;
        char *path, *token;
        int err, rc;
-       LIST_HEAD(staging_q);
 
        path = u->u.buffer + sizeof(u->u.msg);
        token = memchr(path, 0, u->u.msg.len);
@@ -523,7 +522,6 @@ static ssize_t xenbus_file_write(struct file *filp,
        uint32_t msg_type;
        int rc = len;
        int ret;
-       LIST_HEAD(staging_q);
 
        /*
         * We're expecting usermode to be writing properly formed