diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index 128b2632512d07..eab5394da66647 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -149,7 +149,7 @@ struct cm4000_dev {
 #define	ZERO_DEV(dev)  						\
 	memset(&dev->atr_csum,0,				\
 		sizeof(struct cm4000_dev) - 			\
-		/*link*/ sizeof(struct pcmcia_device) - 	\
+		/*link*/ sizeof(struct pcmcia_device *) - 	\
 		/*node*/ sizeof(dev_node_t) - 			\
 		/*atr*/ MAX_ATR*sizeof(char) - 			\
 		/*rbuf*/ 512*sizeof(char) - 			\
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 48d3b3d30c2169..74b3124e8247e4 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -1143,6 +1143,12 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
 {
 	struct pcmcia_socket *s = pcmcia_get_socket(skt);
 
+	if (!s) {
+		printk(KERN_ERR "PCMCIA obtaining reference to socket %p " \
+			"failed, event 0x%x lost!\n", skt, event);
+		return -ENODEV;
+	}
+
 	ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n",
 	       event, priority, skt);