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hurd: install correct number of send rights on fork

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* sysdeps/mach/hurd/fork.c (__fork): Install correct number of send
	rights for its main user thread in NEWTASK.
This commit is contained in:
Thomas Schwinge 2015-11-29 16:41:00 +01:00 committed by Samuel Thibault
parent db4855bf0c
commit 894f3e1311
2 changed files with 6 additions and 5 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2015-11-29 Thomas Schwinge <thomas@codesourcery.com>
* sysdeps/mach/hurd/fork.c (__fork): Install correct number of send
rights for its main user thread in NEWTASK.
2015-11-28 Maciej W. Rozycki <macro@imgtec.com>
* sysdeps/mips/fpu_control.h (_FPU_RESERVED): Include ABS2008.

6
sysdeps/mach/hurd/fork.c
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@ -464,14 +464,10 @@ __fork (void)
(err = __mach_port_insert_right (newtask, ss->thread,
thread, MACH_MSG_TYPE_COPY_SEND)))
LOSE;
/* We have one extra user reference created at the beginning of this
function, accounted for by mach_port_names (and which will thus be
accounted for in the child below). This extra right gets consumed
in the child by the store into _hurd_sigthread in the child fork. */
if (thread_refs > 1 &&
(err = __mach_port_mod_refs (newtask, ss->thread,
MACH_PORT_RIGHT_SEND,
thread_refs)))
thread_refs - 1)))
LOSE;
if ((_hurd_msgport_thread != MACH_PORT_NULL) /* Let user have none. */
&& ((err = __mach_port_deallocate (newtask, _hurd_msgport_thread)) ||