1703 static struct return_instance *free_ret_instance(struct return_instance *ri)  in free_ret_instance()  argument
1705 	struct return_instance *next = ri->next;  in free_ret_instance()
1706 	put_uprobe(ri->uprobe);  in free_ret_instance()
1707 	kfree(ri);  in free_ret_instance()
1718 	struct return_instance *ri;  in uprobe_free_utask()  local
1726 	ri = utask->return_instances;  in uprobe_free_utask()
1727 	while (ri)  in uprobe_free_utask()
1728 		ri = free_ret_instance(ri);  in uprobe_free_utask()
1849 	struct return_instance *ri = utask->return_instances;  in cleanup_return_instances()  local
1852 	while (ri && !arch_uretprobe_is_alive(ri, ctx, regs)) {  in cleanup_return_instances()
1853 		ri = free_ret_instance(ri);  in cleanup_return_instances()
1856 	utask->return_instances = ri;  in cleanup_return_instances()
1861 	struct return_instance *ri;  in prepare_uretprobe()  local
1880 	ri = kmalloc(sizeof(struct return_instance), GFP_KERNEL);  in prepare_uretprobe()
1881 	if (!ri)  in prepare_uretprobe()
1910 	ri->uprobe = get_uprobe(uprobe);  in prepare_uretprobe()
1911 	ri->func = instruction_pointer(regs);  in prepare_uretprobe()
1912 	ri->stack = user_stack_pointer(regs);  in prepare_uretprobe()
1913 	ri->orig_ret_vaddr = orig_ret_vaddr;  in prepare_uretprobe()
1914 	ri->chained = chained;  in prepare_uretprobe()
1917 	ri->next = utask->return_instances;  in prepare_uretprobe()
1918 	utask->return_instances = ri;  in prepare_uretprobe()
1922 	kfree(ri);  in prepare_uretprobe()
2105 handle_uretprobe_chain(struct return_instance *ri, struct pt_regs *regs)  in handle_uretprobe_chain()  argument
2107 	struct uprobe *uprobe = ri->uprobe;  in handle_uretprobe_chain()
2113 			uc->ret_handler(uc, ri->func, regs);  in handle_uretprobe_chain()
2118 static struct return_instance *find_next_ret_chain(struct return_instance *ri)  in find_next_ret_chain()  argument
2123 		chained = ri->chained;  in find_next_ret_chain()
2124 		ri = ri->next;	/* can't be NULL if chained */  in find_next_ret_chain()
2127 	return ri;  in find_next_ret_chain()
2133 	struct return_instance *ri, *next;  in handle_trampoline()  local
2140 	ri = utask->return_instances;  in handle_trampoline()
2141 	if (!ri)  in handle_trampoline()
2151 		next = find_next_ret_chain(ri);  in handle_trampoline()
2154 		instruction_pointer_set(regs, ri->orig_ret_vaddr);  in handle_trampoline()
2157 				handle_uretprobe_chain(ri, regs);  in handle_trampoline()
2158 			ri = free_ret_instance(ri);  in handle_trampoline()
2160 		} while (ri != next);  in handle_trampoline()
2163 	utask->return_instances = ri;  in handle_trampoline()