fbdev/core/fb_chrdev.c

37 	if (fb_WARN_ON_ONCE(info, !info->fbops->fb_read))
43 	return info->fbops->fb_read(info, buf, count, ppos);
53 	if (fb_WARN_ON_ONCE(info, !info->fbops->fb_write))
59 	return info->fbops->fb_write(info, buf, count, ppos);
153 		fb = info->fbops;
283 	fb = info->fbops;
322 	if (fb_WARN_ON_ONCE(info, !info->fbops->fb_mmap))
326 	res = info->fbops->fb_mmap(info, vma);
351 	if (!try_module_get(info->fbops->owner)) {
356 	if (info->fbops->fb_open) {
357 		res = info->fbops->fb_open(info, 1);
359 			module_put(info->fbops->owner);
383 	if (info->fbops->fb_release)
384 		info->fbops->fb_release(info, 1);
385 	module_put(info->fbops->owner);