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From: Mateusz Guzik <mjg@FreeBSD.org>
Date: Sat, 14 Oct 2017 00:47:30 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r324613 - head/sys/kern
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Author: mjg
Date: Sat Oct 14 00:47:30 2017
New Revision: 324613
URL: https://svnweb.freebsd.org/changeset/base/324613

Log:
  mtx: fix up owner_mtx after r324609
  
  Now that MTX_UNOWNED is 0 the test was alwayas false.

Modified:
  head/sys/kern/kern_mutex.c

Modified: head/sys/kern/kern_mutex.c
==============================================================================
--- head/sys/kern/kern_mutex.c	Fri Oct 13 22:40:57 2017	(r324612)
+++ head/sys/kern/kern_mutex.c	Sat Oct 14 00:47:30 2017	(r324613)
@@ -217,7 +217,7 @@ owner_mtx(const struct lock_object *lock, struct threa
 	m = (const struct mtx *)lock;
 	x = m->mtx_lock;
 	*owner = (struct thread *)(x & ~MTX_FLAGMASK);
-	return (x != MTX_UNOWNED);
+	return (*owner != NULL);
 }
 #endif