umount: stop using excessive aounts of stack. Surprisingly,

code shrank a lot too

function                                             old     new   delta
umount_main                                          751     640    -111

diff --git a/util-linux/umount.c b/util-linux/umount.c
index 7c1b81347fd15855a3346400676f0e4b3b514f17..a9d60fc29dc91b64cfcf539b62b406426d8619d9 100644 (file)
--- a/util-linux/umount.c
+++ b/util-linux/umount.c
@@ -25,7 +25,7 @@ int umount_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int umount_main(int argc, char **argv)
 {
        int doForce;
-       char path[PATH_MAX + 2];
+       char *const path = xmalloc(PATH_MAX + 2); /* to save stack */
        struct mntent me;
        FILE *fp;
        char *fstype = 0;
@@ -155,6 +155,7 @@ int umount_main(int argc, char **argv)
                        free(mtl);
                        mtl = m;
                }
+               free(path);
        }
 
        return status;