init: do not set HOME

function                                             old     new   delta
.rodata                                           104906  104899      -7
init_main                                            786     776     -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-17)             Total: -17 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/init/init.c b/init/init.c
index 785a3b460..1e1ce833d 100644
--- a/init/init.c
+++ b/init/init.c
@@ -1105,10 +1105,14 @@ int init_main(int argc UNUSED_PARAM, char **argv)
         setsid();
 
         /* Make sure environs is set to something sane */
-        putenv((char *) "HOME=/");
         putenv((char *) bb_PATH_root_path);
         putenv((char *) "SHELL=/bin/sh");
         putenv((char *) "USER=root"); /* needed? why? */
+        /* Linux kernel sets HOME="/" when execing init,
+         * and it can be overridden (but not unset?) on kernel's command line.
+         * We used to set it to "/" here, but now we do not:
+         */
+        //putenv((char *) "HOME=/");
 
         if (argv[1])
                 xsetenv("RUNLEVEL", argv[1]);