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>

drivers/media/dvb/dvb-usb/gp8psk.c

@@ -219,7 +219,7 @@ static struct dvb_usb_device_properties gp8psk_properties = {
 		  .cold_ids = { &gp8psk_usb_table[0], NULL },
 		  .warm_ids = { &gp8psk_usb_table[1], NULL },
 		},
-		{ 0 },
+		{ NULL },
 	}
 };
 

drivers/media/video/cx88/cx88-blackbird.c

@@ -896,7 +896,7 @@ static int mpeg_do_ioctl(struct inode *inode, struct file *file,
 		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);

drivers/media/video/pvrusb2/pvrusb2-i2c-chips-v4l2.c

@@ -19,6 +19,7 @@
  *
  */
 
+#include <linux/kernel.h>
 #include "pvrusb2-i2c-core.h"
 #include "pvrusb2-hdw-internal.h"
 #include "pvrusb2-debug.h"
@@ -89,7 +90,8 @@ void pvr2_i2c_probe(struct pvr2_hdw *hdw,struct pvr2_i2c_client *cp)
 
 const struct pvr2_i2c_op *pvr2_i2c_get_op(unsigned int idx)
 {
-	if (idx >= sizeof(ops)/sizeof(ops[0])) return 0;
+	if (idx >= ARRAY_SIZE(ops))
+		return NULL;
 	return ops[idx];
 }