Should compare errno to 0, not NULL

0b1ff669 · Guido van Rossum · 76e47f3d · 0b1ff669
Commit 0b1ff669 authored Nov 02, 1996 by Guido van Rossum
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Modules/timemodule.c Modules/timemodule.c +1 -1

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--- a/Modules/timemodule.c
+++ b/Modules/timemodule.c
@@ -147,7 +147,7 @@ time_convert(when, function)
 	p = function(&when);
 	if (p == NULL) {
 #ifdef EINVAL
-		if (errno == NULL)
+		if (errno == 0)
 			errno = EINVAL;
 #endif
 		return err_errno(IOError);