libertas: move lbs_update_channel out of assoc.c

... as it has nothing to do with pure association

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index 4e6d019..4a82f51 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -825,6 +825,22 @@
 	return ret;
 }
 
+int lbs_update_channel(struct lbs_private *priv)
+{
+	int ret;
+
+	/* the channel in f/w could be out of sync; get the current channel */
+	lbs_deb_enter(LBS_DEB_ASSOC);
+
+	ret = lbs_get_channel(priv);
+	if (ret > 0) {
+		priv->curbssparams.channel = ret;
+		ret = 0;
+	}
+	lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
+	return ret;
+}
+
 /**
  *  @brief Set the radio channel
  *