Only call free if it is necessary

git-svn-id: svn://busybox.net/trunk/busybox@6325 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 2 insertions, 1 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 01a02d375..828a88872 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -1830,7 +1830,8 @@ static void setpwd(const char *val, int setold)
                 getpwd();
         else
                 curdir = simplify_path(val);
-        free(cated);
+        if (cated)
+                free(cated);
         INTON;
         setvar("PWD", curdir, VEXPORT);
 }