media: zr364xx: avoid casting just to print pointer address

Instead of casting, just use %p.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/usb/zr364xx/zr364xx.c

@@ -517,8 +517,7 @@ static void zr364xx_fillbuff(struct zr364xx_camera *cam,
 		printk(KERN_ERR KBUILD_MODNAME ": =======no frame\n");
 		return;
 	}
-	DBG("%s: Buffer 0x%08lx size= %d\n", __func__,
-		(unsigned long)vbuf, pos);
+	DBG("%s: Buffer %p size= %d\n", __func__, vbuf, pos);
 	/* tell v4l buffer was filled */
 
 	buf->vb.field_count = cam->frame_count * 2;
@@ -1277,7 +1276,7 @@ static int zr364xx_mmap(struct file *file, struct vm_area_struct *vma)
 		DBG("%s: cam == NULL\n", __func__);
 		return -ENODEV;
 	}
-	DBG("mmap called, vma=0x%08lx\n", (unsigned long)vma);
+	DBG("mmap called, vma=%p\n", vma);
 
 	ret = videobuf_mmap_mapper(&cam->vb_vidq, vma);