[PATCH gpgme 2/3] doc: Fix minor errors in I/O callback example

[Daiki Ueno]

* gpgme.texi (I/O Callback Example): Fix typos and add missing return in
do_select when there is no FD to monitor.

Signed-off-by: Daiki Ueno <ueno at gnu.org>
---
 doc/gpgme.texi | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/doc/gpgme.texi b/doc/gpgme.texi
index db94617..6a2e77e 100644
--- a/doc/gpgme.texi
+++ b/doc/gpgme.texi
@@ -5838,7 +5838,11 @@ do_select (struct event_loop *loop)
   for (i = 0; i < MAX_FDS; i++)
     if (fdlist[i].fd != -1)
       FD_SET (fdlist[i].fd, fdlist[i].dir ? &rfds : &wfds);
-  pthread_mutex_unlock (&loop->unlock);
+  pthread_mutex_unlock (&loop->lock);
+
+  /* No FD to watch.  */
+  if (i == MAX_FDS)
+    return -1;
 
   do
     @{
@@ -5905,7 +5909,7 @@ main (int argc, char *argv[])
     &result
   @};
 
-  init_gpgme (void);
+  init_gpgme ();
 
   /* Initialize the loop structure.  */
   pthread_mutex_init (&loop.lock, NULL);
-- 
2.5.0