diff options
Diffstat (limited to 'modutils/rmmod.c')
| -rw-r--r-- | modutils/rmmod.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/modutils/rmmod.c b/modutils/rmmod.c index c83904551..5576eb6a1 100644 --- a/modutils/rmmod.c +++ b/modutils/rmmod.c @@ -34,9 +34,11 @@ extern int rmmod_main(int argc, char **argv) int n, ret = EXIT_SUCCESS; size_t nmod = 0; /* number of modules */ size_t pnmod = -1; /* previous number of modules */ + unsigned int flags = O_NONBLOCK|O_EXCL; +#ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE void *buf; /* hold the module names which we ignore but must get */ size_t bufsize = 0; - unsigned int flags = O_NONBLOCK|O_EXCL; +#endif /* Parse command line. */ while ((n = getopt(argc, argv, "a")) != EOF) { @@ -50,17 +52,24 @@ extern int rmmod_main(int argc, char **argv) case 'a': /* Unload _all_ unused modules via NULL delete_module() call */ /* until the number of modules does not change */ +#ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE buf = xmalloc(bufsize = 256); +#endif while (nmod != pnmod) { - if (syscall(__NR_delete_module, NULL, flags) < 0) + if (syscall(__NR_delete_module, NULL, flags) < 0) { + if (errno==EFAULT) + return(ret); bb_perror_msg_and_die("rmmod"); + } pnmod = nmod; +#ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE /* 1 == QM_MODULES */ if (my_query_module(NULL, 1, &buf, &bufsize, &nmod)) { bb_perror_msg_and_die("QM_MODULES"); } +#endif } -#ifdef CONFIG_FEATURE_CLEAN_UP +#if defined CONFIG_FEATURE_CLEAN_UP && CONFIG_FEATURE_QUERY_MODULE_INTERFACE free(buf); #endif return EXIT_SUCCESS; |