Fix for bug #242814 (Linux): made sure that Valgrind tools do not crash when the...

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11191

diff --git a/coregrind/m_syswrap/syswrap-linux.c b/coregrind/m_syswrap/syswrap-linux.c
index 9c47dfb2b2a0034ec4e1a31777040a4d57a3c7bd..247402d80735bd297483d25cd553c309c5645070 100644 (file)
--- a/coregrind/m_syswrap/syswrap-linux.c
+++ b/coregrind/m_syswrap/syswrap-linux.c
@@ -420,7 +420,8 @@ PRE(sys_mount)
    PRE_REG_READ5(long, "mount",
                  char *, source, char *, target, char *, type,
                  unsigned long, flags, void *, data);
-   PRE_MEM_RASCIIZ( "mount(source)", ARG1);
+   if (ARG1)
+      PRE_MEM_RASCIIZ( "mount(source)", ARG1);
    PRE_MEM_RASCIIZ( "mount(target)", ARG2);
    PRE_MEM_RASCIIZ( "mount(type)", ARG3);
 }