From: Keith Randall <khr@golang.org>
Date: Mon, 8 Sep 2014 22:42:48 +0000 (-0700)
Subject: runtime: note the double-releasem isn't an error.
X-Git-Tag: go1.4beta1~469
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=1d88f9dd4ddc99c557593007ac4118492d559d05;p=gostls13.git

runtime: note the double-releasem isn't an error.

LGTM=bradfitz
R=dave, bradfitz
CC=golang-codereviews
https://golang.org/cl/136390043
---

diff --git a/src/runtime/malloc.go b/src/runtime/malloc.go
index b3c9c1fd78..8181312f17 100644
--- a/src/runtime/malloc.go
+++ b/src/runtime/malloc.go
@@ -134,6 +134,8 @@ func gomallocgc(size uintptr, typ *_type, flags int) unsafe.Pointer {
 						if mp.curg != nil {
 							mp.curg.stackguard0 = mp.curg.stackguard
 						}
+						// Note: one releasem for the acquirem just above.
+						// The other for the acquirem at start of malloc.
 						releasem(mp)
 						releasem(mp)
 					}
@@ -309,6 +311,8 @@ marked:
 		if mp.curg != nil {
 			mp.curg.stackguard0 = mp.curg.stackguard
 		}
+		// Note: one releasem for the acquirem just above.
+		// The other for the acquirem at start of malloc.
 		releasem(mp)
 		releasem(mp)
 	}