[PATCH] binder: fix "cast to pointer from integer of different size" warning

[Jisheng Zhang]

The binder driver now could cause warnings as below on 32bit platforms
if ANDROID_BINDER_IPC_32BIT is unselected:

drivers/android/binder.c:1550:15: warning: cast to pointer from integer
of different size [-Wint-to-pointer-cast]

This patch fix all of them.

Signed-off-by: Jisheng Zhang <jszh...@marvell.com>
---
 drivers/android/binder.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index f7665c31feca..2812586bfae5 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -1547,7 +1547,8 @@ static void binder_transaction_buffer_release(struct 
binder_proc *proc,
                                       debug_id, (u64)fda->num_fds);
                                continue;
                        }
-                       fd_array = (u32 *)(parent_buffer + fda->parent_offset);
+                       fd_array = (u32 *)(parent_buffer +
+                                          (uintptr_t)fda->parent_offset);
                        for (fd_index = 0; fd_index < fda->num_fds; fd_index++)
                                task_close_fd(proc, fd_array[fd_index]);
                } break;
@@ -1751,7 +1752,7 @@ static int binder_translate_fd_array(struct 
binder_fd_array_object *fda,
         * back to the kernel address space to access it
         */
        parent_buffer = parent->buffer - target_proc->user_buffer_offset;
-       fd_array = (u32 *)(parent_buffer + fda->parent_offset);
+       fd_array = (u32 *)(parent_buffer + (uintptr_t)fda->parent_offset);
        if (!IS_ALIGNED((unsigned long)fd_array, sizeof(u32))) {
                binder_user_error("%d:%d parent offset not aligned 
correctly.\n",
                                  proc->pid, thread->pid);
@@ -1786,7 +1787,7 @@ static int binder_fixup_parent(struct binder_transaction 
*t,
                               binder_size_t last_fixup_min_off)
 {
        struct binder_buffer_object *parent;
-       u8 *parent_buffer;
+       uintptr_t parent_buffer;
        struct binder_buffer *b = t->buffer;
        struct binder_proc *proc = thread->proc;
        struct binder_proc *target_proc = t->to_proc;
@@ -1817,9 +1818,9 @@ static int binder_fixup_parent(struct binder_transaction 
*t,
                                  proc->pid, thread->pid);
                return -EINVAL;
        }
-       parent_buffer = (u8 *)(parent->buffer -
-                              target_proc->user_buffer_offset);
-       *(binder_uintptr_t *)(parent_buffer + bp->parent_offset) = bp->buffer;
+       parent_buffer = parent->buffer - target_proc->user_buffer_offset;
+       *(binder_uintptr_t *)(parent_buffer +
+                             (uintptr_t)bp->parent_offset) = bp->buffer;
 
        return 0;
 }
-- 
2.14.1