shithub: qk2

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ref: 46ce4198481f1e07568961f745850da6d9b5b468
parent: 60e95c7c1546a5580fdf2799f4c0e4d7e05b0991
author: qwx <>
date: Sat Dec 15 14:31:56 EST 2018

in: check for nil before chanfree

--- a/in.c
+++ b/in.c
@@ -415,8 +415,10 @@
 	iop = -1;
 	close(pfd[0]);
 	close(pfd[1]);
-	chanfree(kchan);
-	chanfree(mchan);
+	if(kchan != nil)
+		chanfree(kchan);
+	if(mchan != nil)
+		chanfree(mchan);
 }
 
 void