| From 45efd871bf0a47648f119d1b41467f70484de5bc Mon Sep 17 00:00:00 2001 |
| From: Sven Schnelle <svens@stackframe.org> |
| Date: Thu, 4 Apr 2019 18:16:03 +0200 |
| Subject: parisc: regs_return_value() should return gpr28 |
| |
| From: Sven Schnelle <svens@stackframe.org> |
| |
| commit 45efd871bf0a47648f119d1b41467f70484de5bc upstream. |
| |
| While working on kretprobes for PA-RISC I was wondering while the |
| kprobes sanity test always fails on kretprobes. This is caused by |
| returning gpr20 instead of gpr28. |
| |
| Signed-off-by: Sven Schnelle <svens@stackframe.org> |
| Signed-off-by: Helge Deller <deller@gmx.de> |
| Cc: stable@vger.kernel.org # 4.14+ |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| arch/parisc/include/asm/ptrace.h | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/arch/parisc/include/asm/ptrace.h |
| +++ b/arch/parisc/include/asm/ptrace.h |
| @@ -22,7 +22,7 @@ unsigned long profile_pc(struct pt_regs |
| |
| static inline unsigned long regs_return_value(struct pt_regs *regs) |
| { |
| - return regs->gr[20]; |
| + return regs->gr[28]; |
| } |
| |
| static inline void instruction_pointer_set(struct pt_regs *regs, |
