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| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2006-11-17 22:55:05 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2006-11-17 22:55:05 +0000 |
| commit | 336227dbc3c22b9f16bbf8bb9e8764a57517d750 (patch) | |
| tree | e51ddf1465595e038e93d09baa829efca5cee7c3 /cpukit/libcsupport/src/sync.c | |
| parent | 2006-11-17 Joel Sherrill <joel@OARcorp.com> (diff) | |
| download | rtems-336227dbc3c22b9f16bbf8bb9e8764a57517d750.tar.bz2 | |
2006-11-17 Joel Sherrill <joel@OARcorp.com>
* libcsupport/src/sync.c: Do not dereference NULL reent.
Diffstat (limited to 'cpukit/libcsupport/src/sync.c')
| -rw-r--r-- | cpukit/libcsupport/src/sync.c | 12 |
1 files changed, 8 insertions, 4 deletions
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) |