tomoyo: cleanup. don't store bogus pointer

If domain is NULL then &domain->list is a bogus address.  Let's leave
head->r.domain NULL instead of saving an unusable pointer.

This is just a cleanup.  The current code always checks head->r.eof
before dereferencing head->r.domain.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>

1 files changed, 4 insertions, 2 deletions

diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index c668b447c725..e0a1059aaf3a 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -768,8 +768,10 @@ static bool tomoyo_select_one(struct tomoyo_io_buffer *head, const char *data)
                 return true; /* Do nothing if open(O_WRONLY). */
         memset(&head->r, 0, sizeof(head->r));
         head->r.print_this_domain_only = true;
-        head->r.eof = !domain;
-        head->r.domain = &domain->list;
+        if (domain)
+                head->r.domain = &domain->list;
+        else
+                head->r.eof = 1;
         tomoyo_io_printf(head, "# select %s\n", data);
         if (domain && domain->is_deleted)
                 tomoyo_io_printf(head, "# This is a deleted domain.\n");