V4L/DVB (4674): Use NULL instead of 0 for ptrs

Use NULL instead of 0 for pointer value, eliminate sparse warnings.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index 663b713..4673832 100644
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -896,7 +896,7 @@
 		snprintf(name, sizeof(name), "%s/2", core->name);
 		printk("%s/2: ============  START LOG STATUS  ============\n",
 		       core->name);
-		cx88_call_i2c_clients(core, VIDIOC_LOG_STATUS, 0);
+		cx88_call_i2c_clients(core, VIDIOC_LOG_STATUS, NULL);
 		cx2341x_log_status(&dev->params, name);
 		printk("%s/2: =============  END LOG STATUS  =============\n",
 		       core->name);