staging: binder: cleanup dereference of noderef expressions

Clean up sparse warnings for cred struct dereference.

Signed-off-by: Jerry Snitselaar <dev@snitselaar.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
index 35c00abc3dd13396de688317d21f30fdababfecc..c78411a22562dc0696307bc7d7d663c141e03277 100644 (file)
--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -1326,6 +1326,7 @@ static void binder_transaction(struct binder_proc *proc,
        struct binder_transaction *in_reply_to = NULL;
        struct binder_transaction_log_entry *e;
        uint32_t return_error;
+       const struct cred *cred = __task_cred(proc->tsk);
 
        e = binder_transaction_log_add(&binder_transaction_log);
        e->call_type = reply ? 2 : !!(tr->flags & TF_ONE_WAY);
@@ -1467,7 +1468,7 @@ static void binder_transaction(struct binder_proc *proc,
                t->from = thread;
        else
                t->from = NULL;
-       t->sender_euid = proc->tsk->cred->euid;
+       t->sender_euid = cred->euid;
        t->to_proc = target_proc;
        t->to_thread = target_thread;
        t->code = tr->code;
@@ -2600,6 +2601,7 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
        struct binder_thread *thread;
        unsigned int size = _IOC_SIZE(cmd);
        void __user *ubuf = (void __user *)arg;
+       const struct cred *cred = current_cred();
 
        /*pr_info("binder_ioctl: %d:%d %x %lx\n", proc->pid, current->pid, cmd, arg);*/
 
@@ -2685,15 +2687,15 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
                        goto err;
                }
                if (uid_valid(binder_context_mgr_uid)) {
-                       if (!uid_eq(binder_context_mgr_uid, current->cred->euid)) {
+                       if (!uid_eq(binder_context_mgr_uid, cred->euid)) {
                                pr_err("BINDER_SET_CONTEXT_MGR bad uid %d != %d\n",
-                                      from_kuid(&init_user_ns, current->cred->euid),
+                                      from_kuid(&init_user_ns, cred->euid),
                                       from_kuid(&init_user_ns, binder_context_mgr_uid));
                                ret = -EPERM;
                                goto err;
                        }
                } else
-                       binder_context_mgr_uid = current->cred->euid;
+                       binder_context_mgr_uid = cred->euid;
                binder_context_mgr_node = binder_new_node(proc, 0, 0);
                if (binder_context_mgr_node == NULL) {
                        ret = -ENOMEM;