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-rw-r--r--generic/tclEncoding.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/generic/tclEncoding.c b/generic/tclEncoding.c
index d246cb2..95c59c0 100644
--- a/generic/tclEncoding.c
+++ b/generic/tclEncoding.c
@@ -180,9 +180,9 @@ TCL_DECLARE_MUTEX(encodingMutex)
* the system encoding will be used to perform the conversion.
*/
-static Tcl_Encoding defaultEncoding;
-static Tcl_Encoding systemEncoding;
-Tcl_Encoding tclIdentityEncoding;
+static Tcl_Encoding defaultEncoding = NULL;
+static Tcl_Encoding systemEncoding = NULL;
+Tcl_Encoding tclIdentityEncoding = NULL;
/*
* The following variable is used in the sparse matrix code for a
@@ -652,7 +652,10 @@ TclFinalizeEncodingSubsystem(void)
Tcl_MutexLock(&encodingMutex);
encodingsInitialized = 0;
FreeEncoding(systemEncoding);
+ systemEncoding = NULL;
+ defaultEncoding = NULL;
FreeEncoding(tclIdentityEncoding);
+ tclIdentityEncoding = NULL;
hPtr = Tcl_FirstHashEntry(&encodingTable, &search);
while (hPtr != NULL) {
@@ -2960,7 +2963,9 @@ TableFreeProc(
*/
ckfree(dataPtr->toUnicode);
+ dataPtr->toUnicode = NULL;
ckfree(dataPtr->fromUnicode);
+ dataPtr->fromUnicode = NULL;
ckfree(dataPtr);
}
@@ -3433,6 +3438,7 @@ EscapeFreeProc(
subTablePtr = dataPtr->subTables;
for (i = 0; i < dataPtr->numSubTables; i++) {
FreeEncoding((Tcl_Encoding) subTablePtr->encodingPtr);
+ subTablePtr->encodingPtr = NULL;
subTablePtr++;
}
}