From 60df7b2d3b73900481814084be027375b5888765 Mon Sep 17 00:00:00 2001
From: Pasi Kallinen <paxed@alt.org>
Date: Tue, 13 Oct 2015 20:36:36 +0300
Subject: [PATCH] Fix infinite loop if god cannot fix your trouble

For example, if safe_teleds cannot land you in a safe spot,
because level is full of monsters.
---
 src/pray.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/pray.c b/src/pray.c
index b4aa9c2c0..deb046bc4 100644
--- a/src/pray.c
+++ b/src/pray.c
@@ -904,6 +904,7 @@ aligntyp g_align;
             pat_on_head = 1;
     } else {
         int action, prayer_luck;
+        int tryct = 0;
 
         /* Negative luck is normally impossible here (can_pray() forces
            prayer failure in that situation), but it's possible for
@@ -936,7 +937,8 @@ aligntyp g_align;
         case 3:
             fix_worst_trouble(trouble);
         case 2:
-            while ((trouble = in_trouble()) > 0)
+            /* arbitrary number of tries */
+            while ((trouble = in_trouble()) > 0 && (++tryct < 10))
                 fix_worst_trouble(trouble);
             break;