net: hdlc_fr: add blank line after declarations

This patch fixes the checkpatch error about missing a blank line
after declarations.
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NGuangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

drivers/net/wan/hdlc_fr.c

@@ -329,6 +329,7 @@ static int pvc_open(struct net_device *dev)
 
 	if (pvc->open_count++ == 0) {
 		hdlc_device *hdlc = dev_to_hdlc(pvc->frad);
+
 		if (state(hdlc)->settings.lmi == LMI_NONE)
 			pvc->state.active = netif_carrier_ok(pvc->frad);
 
@@ -344,6 +345,7 @@ static int pvc_close(struct net_device *dev)
 
 	if (--pvc->open_count == 0) {
 		hdlc_device *hdlc = dev_to_hdlc(pvc->frad);
+
 		if (state(hdlc)->settings.lmi == LMI_NONE)
 			pvc->state.active = 0;
 
@@ -1143,6 +1145,7 @@ static void fr_destroy(struct net_device *frad)
 {
 	hdlc_device *hdlc = dev_to_hdlc(frad);
 	struct pvc_device *pvc = state(hdlc)->first_pvc;
+
 	state(hdlc)->first_pvc = NULL; /* All PVCs destroyed */
 	state(hdlc)->dce_pvc_count = 0;
 	state(hdlc)->dce_changed = 1;