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authorJustus Winter <4winter@informatik.uni-hamburg.de>2013-11-07 17:01:02 +0100
committerJustus Winter <4winter@informatik.uni-hamburg.de>2013-11-10 16:48:13 +0100
commit9b02c4454abee568af9ff1d6c9044e9cd757b5aa (patch)
tree1fc63441e9ee98b628aa970b8fbe7077b615dee4
parent130b51ac17f44707261f4885d2fadb44a2f5a1e5 (diff)
libshouldbeinlibc: fix reference counting in port_name_xlator_create
Both task ports are deallocated in the destructor, so they must be referenced in the constructor. * libshouldbeinlibc/portxlate.c (port_name_xlator_create): Fix reference counting.
-rw-r--r--libshouldbeinlibc/portxlate.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/libshouldbeinlibc/portxlate.c b/libshouldbeinlibc/portxlate.c
index 599fb584..8888e2c2 100644
--- a/libshouldbeinlibc/portxlate.c
+++ b/libshouldbeinlibc/portxlate.c
@@ -35,7 +35,9 @@ port_name_xlator_create (mach_port_t from_task, mach_port_t to_task,
if (! x)
return ENOMEM;
+ mach_port_mod_refs (mach_task_self (), from_task, MACH_PORT_RIGHT_SEND, +1);
x->from_task = from_task;
+ mach_port_mod_refs (mach_task_self (), to_task, MACH_PORT_RIGHT_SEND, +1);
x->to_task = to_task;
x->to_names = 0;
x->to_types = 0;
@@ -64,6 +66,10 @@ port_name_xlator_create (mach_port_t from_task, mach_port_t to_task,
x->to_names_len * sizeof (mach_port_t));
munmap ((caddr_t) x->to_types,
x->to_types_len * sizeof (mach_port_type_t));
+
+ mach_port_deallocate (mach_task_self (), x->to_task);
+ mach_port_deallocate (mach_task_self (), x->from_task);
+
err = ENOMEM;
}
}