core::rt: 0 is a valid TLS key

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libcore/rt/local_sched.rs b/src/libcore/rt/local_sched.rs
index 44dbd55373f..e96a2e8de2d 100644
--- a/src/libcore/rt/local_sched.rs
+++ b/src/libcore/rt/local_sched.rs
@@ -119,7 +119,7 @@ fn maybe_tls_key() -> Option<tls::Key> {
         // another thread. I think this is fine since the only action
         // they could take if it was initialized would be to check the
         // thread-local value and see that it's not set.
-        if key != 0 {
+        if key != -1 {
             return Some(key);
         } else {
             return None;