Fix source address reference accounting

* libpipe/pipe.c (pipe_recv): If `source' is NULL but packet source exists,
dereference it.
* pflocal/io.c (S_io_write): Only dereference the source on errors.

1 files changed, 2 insertions, 0 deletions

diff --git a/libpipe/pipe.c b/libpipe/pipe.c
index 914816bc..4580b3ab 100644
--- a/libpipe/pipe.c
+++ b/libpipe/pipe.c
@@ -383,6 +383,8 @@ pipe_recv (struct pipe *pipe, int noblock, unsigned *flags, void **source,
 
 	  if (source)
 	    packet_read_source (packet, source);
+	  else if (packet->source)
+	    pipe_dealloc_addr(packet->source);
 
 	  err = (*pipe->class->read)(packet, &dq, flags,
 				     data, data_len, amount);