| // SPDX-License-Identifier: GPL-2.0 |
| |
| #include <linux/error-injection.h> |
| #include <linux/kprobes.h> |
| |
| void override_function_with_return(struct pt_regs *regs) |
| { |
| /* |
| * 'regs' represents the state on entry of a predefined function in |
| * the kernel/module and which is captured on a kprobe. |
| * |
| * When kprobe returns back from exception it will override the end |
| * of probed function and directly return to the predefined |
| * function's caller. |
| */ |
| instruction_pointer_set(regs, procedure_link_pointer(regs)); |
| } |
| NOKPROBE_SYMBOL(override_function_with_return); |
