--- zzzz-none-000/linux-3.10.107/drivers/media/pci/ttpci/av7110_hw.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/media/pci/ttpci/av7110_hw.c	2021-02-04 17:41:59.000000000 +0000
@@ -501,7 +501,7 @@
 
 //	dprintk(4, "%p\n", av7110);
 
-	if (2 + num > sizeof(buf)) {
+	if (2 + num > ARRAY_SIZE(buf)) {
 		printk(KERN_WARNING
 		       "%s: %s len=%d is too big!\n",
 		       KBUILD_MODNAME, __func__, num);