diff options
| author | Andrey Tsyvarev <tsyvarev@ispras.ru> | 2015-02-06 05:39:57 +0100 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2015-02-06 06:01:40 +0100 |
| commit | de96d79f343321d26ff920af25fcefe6895ca544 (patch) | |
| tree | e614ee846061655156e2ec93922e1e7bcefc6ab2 /kernel/module.c | |
| parent | module: set ksymtab/kcrctab* section addresses to 0x0 (diff) | |
| download | linux-de96d79f343321d26ff920af25fcefe6895ca544.tar.xz linux-de96d79f343321d26ff920af25fcefe6895ca544.zip | |
kernel/module.c: Free lock-classes if parse_args failed
parse_args call module parameters' .set handlers, which may use locks defined in the module.
So, these classes should be freed in case parse_args returns error(e.g. due to incorrect parameter passed).
Signed-off-by: Andrey Tsyvarev <tsyvarev@ispras.ru>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'kernel/module.c')
| -rw-r--r-- | kernel/module.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/module.c b/kernel/module.c index d856e96a3cce..441ed3fc9c89 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -3356,6 +3356,9 @@ static int load_module(struct load_info *info, const char __user *uargs, module_bug_cleanup(mod); mutex_unlock(&module_mutex); + /* Free lock-classes: */ + lockdep_free_key_range(mod->module_core, mod->core_size); + /* we can't deallocate the module until we clear memory protection */ unset_module_init_ro_nx(mod); unset_module_core_ro_nx(mod); |