[hurd] 09/15: libfshelp: Avoid some right diddling.

[Samuel Thibault]

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sthibault pushed a commit to branch dde
in repository hurd.

commit 04aaffbd6353e7cec04073783cc8cbd22ac2f675
Author: Justus Winter <address@hidden>
Date:   Sun Aug 20 12:03:33 2017 +0200

    libfshelp: Avoid some right diddling.
    
    * libfshelp/translator-list.c (fshelp_set_active_translator): Avoid
    updating the entry if the control port is still the same.
---
 libfshelp/translator-list.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libfshelp/translator-list.c b/libfshelp/translator-list.c
index 91a2c34..a360330 100644
--- a/libfshelp/translator-list.c
+++ b/libfshelp/translator-list.c
@@ -121,7 +121,7 @@ fshelp_set_active_translator (struct port_info *pi,
     }
 
  update:
-  if (MACH_PORT_VALID (active))
+  if (MACH_PORT_VALID (active) && active != t->active)
     {
       mach_port_t old;
       err = mach_port_request_notification (mach_task_self (), active,
@@ -146,7 +146,7 @@ fshelp_set_active_translator (struct port_info *pi,
                          MACH_PORT_RIGHT_SEND, +1);
       t->active = active;
     }
-  else
+  else if (! MACH_PORT_VALID (active))
     {
       int ok;
       ok = hurd_ihash_remove (&translator_ihash, (hurd_ihash_key_t) t->name);

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