There is no reason to be doing a module get/put in pstore_register(), since the module calling pstore_register() cannot be unloaded since it hasn't finished its initialization. Remove it so there is no confusion about how registration ordering works.
Signed-off-by: Kees Cook <[email protected]> --- fs/pstore/platform.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 408277ee3cdb..44f8b9742263 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -555,8 +555,6 @@ static int pstore_write_user_compat(struct pstore_record *record, */ int pstore_register(struct pstore_info *psi) { - struct module *owner = psi->owner; - if (backend && strcmp(backend, psi->name)) { pr_warn("ignoring unexpected backend '%s'\n", psi->name); return -EPERM; @@ -591,10 +589,6 @@ int pstore_register(struct pstore_info *psi) sema_init(&psinfo->buf_lock, 1); spin_unlock(&pstore_lock); - if (owner && !try_module_get(owner)) { - psinfo = NULL; - return -EINVAL; - } if (psi->flags & PSTORE_FLAGS_DMESG) allocate_buf_for_compression(); @@ -626,8 +620,6 @@ int pstore_register(struct pstore_info *psi) pr_info("Registered %s as persistent store backend\n", psi->name); - module_put(owner); - return 0; } EXPORT_SYMBOL_GPL(pstore_register); -- 2.20.1
