libgo patch committed: Check Getsockname error return

[Ian Lance Taylor]

This patch by Tony Reix checks for errors from Getsockname in a couple
of places.  Bootstrapped and ran Go testsuite on x86_64-pc-linux-gnu.
Committed to mainline.

Ian
-------------- next part --------------
Index: gcc/go/gofrontend/MERGE
===================================================================
--- gcc/go/gofrontend/MERGE	(revision 253105)
+++ gcc/go/gofrontend/MERGE	(working copy)
@@ -1,4 +1,4 @@
-e0c1f0b645b12a544b484c0f477f8fb6f5980550
+cdf1f58c7578980e1d1949680c7e404961b7c153
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
Index: libgo/go/net/sock_posix.go
===================================================================
--- libgo/go/net/sock_posix.go	(revision 253025)
+++ libgo/go/net/sock_posix.go	(working copy)
@@ -182,7 +182,10 @@ func (fd *netFD) listenStream(laddr sock
 	if err := fd.init(); err != nil {
 		return err
 	}
-	lsa, _ := syscall.Getsockname(fd.pfd.Sysfd)
+	lsa, err := syscall.Getsockname(fd.pfd.Sysfd)
+	if err != nil {
+		return os.NewSyscallError("getsockname", err)
+	}
 	fd.setAddr(fd.addrFunc()(lsa), nil)
 	return nil
 }
@@ -221,7 +224,10 @@ func (fd *netFD) listenDatagram(laddr so
 	if err := fd.init(); err != nil {
 		return err
 	}
-	lsa, _ := syscall.Getsockname(fd.pfd.Sysfd)
+	lsa, err := syscall.Getsockname(fd.pfd.Sysfd)
+	if err != nil {
+		return os.NewSyscallError("getsockname", err)
+	}
 	fd.setAddr(fd.addrFunc()(lsa), nil)
 	return nil
 }