ext4: make variable "count" signed
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.200 by commit 4ca0d2f1e04e63aafea00445ddbc85878e3a5725, it was introduced in version v5.4.198 by commit 17034d45ec443fb0e3c0e7297f9cd10f70446064. For more details please see the references link.