qemu-char: move pty_chr_update_read_handler around

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>

qemu-char.c

@@ -1101,6 +1101,22 @@ static void pty_chr_rearm_timer(CharDriverState *chr, int ms)
     }
 }
 
+static void pty_chr_update_read_handler(CharDriverState *chr)
+{
+    PtyCharDriver *s = chr->opaque;
+    GPollFD pfd;
+
+    pfd.fd = g_io_channel_unix_get_fd(s->fd);
+    pfd.events = G_IO_OUT;
+    pfd.revents = 0;
+    g_poll(&pfd, 1, 0);
+    if (pfd.revents & G_IO_HUP) {
+        pty_chr_state(chr, 0);
+    } else {
+        pty_chr_state(chr, 1);
+    }
+}
+
 static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
 {
     PtyCharDriver *s = chr->opaque;
@@ -1153,22 +1169,6 @@ static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
     return TRUE;
 }
 
-static void pty_chr_update_read_handler(CharDriverState *chr)
-{
-    PtyCharDriver *s = chr->opaque;
-    GPollFD pfd;
-
-    pfd.fd = g_io_channel_unix_get_fd(s->fd);
-    pfd.events = G_IO_OUT;
-    pfd.revents = 0;
-    g_poll(&pfd, 1, 0);
-    if (pfd.revents & G_IO_HUP) {
-        pty_chr_state(chr, 0);
-    } else {
-        pty_chr_state(chr, 1);
-    }
-}
-
 static void pty_chr_state(CharDriverState *chr, int connected)
 {
     PtyCharDriver *s = chr->opaque;