hvc_console: Use kzalloc() instead of kmalloc() + memset()

Replace kmalloc() + memset()  with kzalloc().
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

drivers/char/hvc_console.c

@@ -765,13 +765,11 @@ struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int data,
 			return ERR_PTR(err);
 	}
 
-	hp = kmalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size,
+	hp = kzalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size,
 			GFP_KERNEL);
 	if (!hp)
 		return ERR_PTR(-ENOMEM);
 
-	memset(hp, 0x00, sizeof(*hp));
-
 	hp->vtermno = vtermno;
 	hp->data = data;
 	hp->ops = ops;