C++ (Cpp) chsc_add_cmg_attr Examples

Example #1

File: chsc.c Project: jay-caoj/linux-3.9.6

int
chsc_secm(struct channel_subsystem *css, int enable)
{
    int ret;

    if (enable && !css->cm_enabled) {
        css->cub_addr1 = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
        css->cub_addr2 = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
        if (!css->cub_addr1 || !css->cub_addr2) {
            free_page((unsigned long)css->cub_addr1);
            free_page((unsigned long)css->cub_addr2);
            return -ENOMEM;
        }
    }
    ret = __chsc_do_secm(css, enable);
    if (!ret) {
        css->cm_enabled = enable;
        if (css->cm_enabled) {
            ret = chsc_add_cmg_attr(css);
            if (ret) {
                __chsc_do_secm(css, 0);
                css->cm_enabled = 0;
            }
        } else
            chsc_remove_cmg_attr(css);
    }
    if (!css->cm_enabled) {
        free_page((unsigned long)css->cub_addr1);
        free_page((unsigned long)css->cub_addr2);
    }
    return ret;
}

Example #2

File: chsc.c Project: LouZiffer/m900_kernel_cupcake-SDX

int
chsc_secm(struct channel_subsystem *css, int enable)
{
	void  *secm_area;
	int ret;

	secm_area = (void *)get_zeroed_page(GFP_KERNEL |  GFP_DMA);
	if (!secm_area)
		return -ENOMEM;

	if (enable && !css->cm_enabled) {
		css->cub_addr1 = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
		css->cub_addr2 = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
		if (!css->cub_addr1 || !css->cub_addr2) {
			free_page((unsigned long)css->cub_addr1);
			free_page((unsigned long)css->cub_addr2);
			free_page((unsigned long)secm_area);
			return -ENOMEM;
		}
	}
	ret = __chsc_do_secm(css, enable, secm_area);
	if (!ret) {
		css->cm_enabled = enable;
		if (css->cm_enabled) {
			ret = chsc_add_cmg_attr(css);
			if (ret) {
				memset(secm_area, 0, PAGE_SIZE);
				__chsc_do_secm(css, 0, secm_area);
				css->cm_enabled = 0;
			}
		} else
			chsc_remove_cmg_attr(css);
	}
	if (!css->cm_enabled) {
		free_page((unsigned long)css->cub_addr1);
		free_page((unsigned long)css->cub_addr2);
	}
	free_page((unsigned long)secm_area);
	return ret;
}