>From 827cbf0b4ade7ec7839b503922ecb278df1ff233 Mon Sep 17 00:00:00 2001
From: Ernesto Ramos <ernesto@xxxxxx>
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 <ernesto@xxxxxx>
---
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
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
