rem: if (!fs)
add: if (fs == NULL || fs->ops.initialize == NULL)
context: initialize_file_system(const char *device, const char *fsName, void *params,	int paramLength){	status_t error;		fsystem *fs = inc_file_system(fsName);	if (!fs)		return FS_ERROR;    error = (*fs->ops.initialize)(device, params, paramLength);		dec_file_system(fs);	return error;}