Tim Clem : server: Avoid a mach port leak on Apple Silicon.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: b2a099b3ceec6fef05c455408c05714232cb466f
URL:    https://gitlab.winehq.org/wine/wine/-/commit/b2a099b3ceec6fef05c455408c05714...

Author: Tim Clem 
Date:   Wed Aug  9 11:22:58 2023 -0700

server: Avoid a mach port leak on Apple Silicon.

Check for Rosetta before extracting the port right, since we won't need
it in that case anyway.

---

server/mach.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/server/mach.c b/server/mach.c
index 3852bb3ee5b..a619c1cd2a8 100644
--- a/server/mach.c
+++ b/server/mach.c
@@ -273,14 +273,6 @@ void set_thread_context( struct thread *thread, const context_t *context, unsign
     /* all other regs are handled on the client side */
     assert( flags == SERVER_CTX_DEBUG_REGISTERS );

-    if (thread->unix_pid == -1 || !process_port ||
-        mach_port_extract_right( process_port, thread->unix_tid,
-                                 MACH_MSG_TYPE_COPY_SEND, &port, &type ))
-    {
-        set_error( STATUS_ACCESS_DENIED );
-        return;
-    }
-
     if (is_rosetta())
     {
         /* Setting debug registers of a translated process is not supported cross-process
@@ -290,6 +282,14 @@ void set_thread_context( struct thread *thread, const context_t *context, unsign
         return;
     }

+    if (thread->unix_pid == -1 || !process_port ||
+        mach_port_extract_right( process_port, thread->unix_tid,
+                                 MACH_MSG_TYPE_COPY_SEND, &port, &type ))
+    {
+        set_error( STATUS_ACCESS_DENIED );
+        return;
+    }
+
     /* get the debug state to determine which flavor to use */
     ret = thread_get_state(port, x86_DEBUG_STATE, (thread_state_t)&state, &count);
     if (ret)