[PATCH 2/5] DSPBRIDGE: Avoid errors if node handle is zero

[Ramos Falcon, Ernesto]

>From 827cbf0b4ade7ec7839b503922ecb278df1ff233 Mon Sep 17 00:00:00 2001
From: Ernesto Ramos <erne...@ti.com>
Date: Fri, 16 Apr 2010 18:22:36 -0500
Subject: [PATCH 2/5] DSPBRIDGE: Avoid errors if node handle is zero

As 'zero' can be a perfectly good id, it can be picked up as
a NULL from userspace, avoid issues in API and user apps if node
handle is zero.

Signed-off-by: Ernesto Ramos <erne...@ti.com>
---
 drivers/dsp/bridge/pmgr/wcd.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/dsp/bridge/pmgr/wcd.c b/drivers/dsp/bridge/pmgr/wcd.c
index 20e02f1..d51798a 100644
--- a/drivers/dsp/bridge/pmgr/wcd.c
+++ b/drivers/dsp/bridge/pmgr/wcd.c
@@ -1028,7 +1028,7 @@ inline void find_node_handle(struct node_res_object 
**noderes,
 {
        rcu_read_lock();
        *noderes = idr_find(((struct process_context *)pr_ctxt)->node_idp,
-                                                               (int)hnode);
+                                                               (int)hnode - 1);
        rcu_read_unlock();
        return;
 }
@@ -1086,6 +1086,8 @@ u32 nodewrap_allocate(union Trapped_Args *args, void 
*pr_ctxt)
                if (DSP_FAILED(status)) {
                        status = DSP_EPOINTER;
                        node_delete(node_res, pr_ctxt);
+               } else {
+                       *args->args_node_allocate.ph_node += 1;
                }
        }
 func_cont:
-- 
1.5.4.5

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