Fix crashes when unbind_for_thread_switch signals an error.

 src/eval.c (unbind_for_thread_switch): Accept a 'struct
 thread_state *' argument and use specpdl_ptr and specpdl of that
 thread.  Fixes crashes if find_symbol_value signals an error.
 src/thread.c (post_acquire_global_lock): Update current_thread
 before calling unbind_for_thread_switch.  Pass the previous thread
 to unbind_for_thread_switch.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 3e901d84db9..705b9c771df 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,13 @@
+2013-09-01  Eli Zaretskii  <eliz@gnu.org>
+
+        * eval.c (unbind_for_thread_switch): Accept a 'struct
+        thread_state *' argument and use specpdl_ptr and specpdl of that
+        thread.  Fixes crashes if find_symbol_value signals an error.
+
+        * thread.c (post_acquire_global_lock): Update current_thread
+        before calling unbind_for_thread_switch.  Pass the previous thread
+        to unbind_for_thread_switch.
+
 2013-08-31  Eli Zaretskii  <eliz@gnu.org>
 
         * systhread.c (sys_cond_init): Set the 'initialized' member to