am_munmap_both_wrk: safely initialise out-param for all return paths.

Silences what I think is a false complaint from gcc at -O3.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16221

diff --git a/coregrind/m_aspacemgr/aspacemgr-linux.c b/coregrind/m_aspacemgr/aspacemgr-linux.c
index 907ceb774c94cc94489a2c568e062e6941195ae2..62bc1705805b59ed0b3a059461b8f61eb719344b 100644 (file)
--- a/coregrind/m_aspacemgr/aspacemgr-linux.c
+++ b/coregrind/m_aspacemgr/aspacemgr-linux.c
@@ -2773,6 +2773,9 @@ SysRes am_munmap_both_wrk ( /*OUT*/Bool* need_discard,
    Bool   d;
    SysRes sres;
 
+   /* Be safe with this regardless of return path. */
+   *need_discard = False;
+
    if (!VG_IS_PAGE_ALIGNED(start))
       goto eINVAL;