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From: Olivier Houchard <cognet@FreeBSD.org>
Date: Fri, 23 Mar 2018 17:25:19 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r331441 - head/sys/mips/mips
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Author: cognet
Date: Fri Mar 23 17:25:19 2018
New Revision: 331441
URL: https://svnweb.freebsd.org/changeset/base/331441

Log:
  In __sync_bool_compare_and_swap(), return true if the returned value is the
  same as the expected one, not the desired one.
  
  Pointy hat to:	cognet
  MFC after:	3 days

Modified:
  head/sys/mips/mips/stdatomic.c

Modified: head/sys/mips/mips/stdatomic.c
==============================================================================
--- head/sys/mips/mips/stdatomic.c	Fri Mar 23 17:22:28 2018	(r331440)
+++ head/sys/mips/mips/stdatomic.c	Fri Mar 23 17:25:19 2018	(r331441)
@@ -327,7 +327,7 @@ __sync_bool_compare_and_swap_4(uint32_t *mem, uint32_t
 {
 
 	return (do_compare_and_swap_4(mem, expected, desired) ==
-	    desired);
+	    expected);
 }
 
 #define	EMIT_FETCH_AND_OP_4(name, op)					\