sparc: Fix ptrace() detach.

Forever we had a PTRACE_SUNOS_DETACH which was unconditionally
recognized, regardless of the personality of the process.

Unfortunately, this value is what ended up in the GLIBC sys/ptrace.h
header file on sparc as PTRACE_DETACH and PT_DETACH.

So continue to recognize this old value.  Luckily, it doesn't conflict
with anything we actually care about.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index e9fc0aa2da38..b803fe9b2c8d 100644
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -944,6 +944,8 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
                 break;
 
         default:
+                if (request == PTRACE_SPARC_DETACH)
+                        request = PTRACE_DETACH;
                 ret = compat_ptrace_request(child, request, addr, data);
                 break;
         }
@@ -1036,6 +1038,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 break;
 
         default:
+                if (request == PTRACE_SPARC_DETACH)
+                        request = PTRACE_DETACH;
                 ret = ptrace_request(child, request, addr, data);
                 break;
         }