From 336227dbc3c22b9f16bbf8bb9e8764a57517d750 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Fri, 17 Nov 2006 22:55:05 +0000 Subject: 2006-11-17 Joel Sherrill * libcsupport/src/sync.c: Do not dereference NULL reent. --- cpukit/libcsupport/src/sync.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'cpukit/libcsupport') diff --git a/cpukit/libcsupport/src/sync.c b/cpukit/libcsupport/src/sync.c index 8d1f52e725..ad1ac0e052 100644 --- a/cpukit/libcsupport/src/sync.c +++ b/cpukit/libcsupport/src/sync.c @@ -55,15 +55,19 @@ static void sync_wrapper(FILE *f) static void sync_per_thread(Thread_Control *t) { struct _reent *current_reent; + struct _reent *this_reent; /* * The sync_wrapper() function will operate on the current thread's * reent structure so we will temporarily use that. */ - current_reent = _Thread_Executing->libc_reent; - _Thread_Executing->libc_reent = t->libc_reent; - _fwalk (t->libc_reent, sync_wrapper); - _Thread_Executing->libc_reent = current_reent; + this_reent = t->libc_reent; + if ( this_reent ) { + current_reent = _Thread_Executing->libc_reent; + _Thread_Executing->libc_reent = this_reent; + _fwalk (t->libc_reent, sync_wrapper); + _Thread_Executing->libc_reent = current_reent; + } } int sync(void) -- cgit v1.2.3