diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
index 2b810bb2a4c7..d9178843e8d2 100644
--- a/drivers/media/video/cx18/cx18-driver.c
+++ b/drivers/media/video/cx18/cx18-driver.c
@@ -614,7 +614,7 @@ static int __devinit cx18_probe(struct pci_dev *dev,
 	cx18_cards[cx18_cards_active] = cx;
 	cx->dev = dev;
 	cx->num = cx18_cards_active++;
-	snprintf(cx->name, sizeof(cx->name) - 1, "cx18-%d", cx->num);
+	snprintf(cx->name, sizeof(cx->name), "cx18-%d", cx->num);
 	CX18_INFO("Initializing card #%d\n", cx->num);
 
 	spin_unlock(&cx18_cards_lock);
diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c
index 797e636771da..bbe92d9dce36 100644
--- a/drivers/media/video/ivtv/ivtv-driver.c
+++ b/drivers/media/video/ivtv/ivtv-driver.c
@@ -1019,7 +1019,7 @@ static int __devinit ivtv_probe(struct pci_dev *dev,
 	ivtv_cards[ivtv_cards_active] = itv;
 	itv->dev = dev;
 	itv->num = ivtv_cards_active++;
-	snprintf(itv->name, sizeof(itv->name) - 1, "ivtv%d", itv->num);
+	snprintf(itv->name, sizeof(itv->name), "ivtv%d", itv->num);
 	IVTV_INFO("Initializing card #%d\n", itv->num);
 
 	spin_unlock(&ivtv_cards_lock);