diff options
| author | Tair Rzayev <tair.rzayev@gmail.com> | 2014-05-31 22:43:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-01 11:36:47 -0700 |
| commit | 57bab7cb353d71c10611c34571fcb3c9f38b4792 (patch) | |
| tree | b4734eddf726089c6f3b6023bd7059c07b69a11d /drivers/staging | |
| parent | 5bcfab136078d02e8ad990bffcb76d150be83dd9 (diff) | |
| download | linux-57bab7cb353d71c10611c34571fcb3c9f38b4792.tar.bz2 | |
staging: android: binder.c: Use more appropriate functions for euid retrieval
Instead of getting the reference to whole credential structure, use
task_euid() and current_euid() to get it.
Signed-off-by: Tair Rzayev <tair.rzayev@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/android/binder.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c index e8dd7ddcba41..989f809f323f 100644 --- a/drivers/staging/android/binder.c +++ b/drivers/staging/android/binder.c @@ -1326,7 +1326,6 @@ 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); @@ -1468,7 +1467,7 @@ static void binder_transaction(struct binder_proc *proc, t->from = thread; else t->from = NULL; - t->sender_euid = cred->euid; + t->sender_euid = task_euid(proc->tsk); t->to_proc = target_proc; t->to_thread = target_thread; t->code = tr->code; @@ -2602,7 +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(); + kuid_t curr_euid = current_euid(); /*pr_info("binder_ioctl: %d:%d %x %lx\n", proc->pid, current->pid, cmd, arg);*/ @@ -2688,15 +2687,16 @@ 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, cred->euid)) { + if (!uid_eq(binder_context_mgr_uid, curr_euid)) { pr_err("BINDER_SET_CONTEXT_MGR bad uid %d != %d\n", - from_kuid(&init_user_ns, cred->euid), + from_kuid(&init_user_ns, curr_euid), from_kuid(&init_user_ns, binder_context_mgr_uid)); ret = -EPERM; goto err; } - } else - binder_context_mgr_uid = cred->euid; + } else { + binder_context_mgr_uid = curr_euid; + } binder_context_mgr_node = binder_new_node(proc, 0, 0); if (binder_context_mgr_node == NULL) { ret = -ENOMEM; |