rmmod: fix bad error message

    Before:

    ># busybox_old rmmod gtrhfhdfghdf
    rmmod: can't unload 'gtrhfhdfghdf': unknown symbol in module, or unknown parameter

    After:

    ># busybox rmmod gtrhfhdfghdf
    rmmod: can't unload module 'gtrhfhdfghdf': No such file or directory

function                                             old     new   delta
modprobe_main                                        726     721      -5
do_modprobe                                          599     590      -9
rmmod_main                                           187     169     -18
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-32)             Total: -32 bytes

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

1 files changed, 3 insertions, 4 deletions

diff --git a/modutils/modprobe.c b/modutils/modprobe.c
index 314a7a1cb..952ba0377 100644
--- a/modutils/modprobe.c
+++ b/modutils/modprobe.c
@@ -461,9 +461,8 @@ static int do_modprobe(struct module_entry *m)
                                 rc = bb_delete_module(m2->modname, O_EXCL);
                                 if (rc) {
                                         if (first) {
-                                                bb_error_msg("can't unload module %s: %s",
-                                                        humanly_readable_name(m2),
-                                                        moderror(rc));
+                                                bb_perror_msg("can't unload module %s",
+                                                        humanly_readable_name(m2));
                                                 break;
                                         }
                                 } else {
@@ -622,7 +621,7 @@ int modprobe_main(int argc UNUSED_PARAM, char **argv)
                          * autoclean will be removed".
                          */
                         if (bb_delete_module(NULL, O_NONBLOCK | O_EXCL) != 0)
-                                bb_perror_msg_and_die("rmmod");
+                                bb_perror_nomsg_and_die();
                 }
                 return EXIT_SUCCESS;
         }