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NOVA: warning fixes - check result of append_item

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This commit is contained in:
Alexander Boettcher 2012-07-05 11:14:02 +02:00 committed by Norman Feske
parent fc6bcd9f9f
commit 77729fab2a
3 changed files with 18 additions and 7 deletions
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14
base-nova/src/base/ipc/ipc.cc
View File

@ -57,7 +57,7 @@ static void copy_utcb_to_msgbuf(Nova::Utcb *utcb, Msgbuf_base *rcv_msg)
/**
* Copy message payload to UTCB message registers
*/
static void copy_msgbuf_to_utcb(Nova::Utcb *utcb, Msgbuf_base *snd_msg,
static bool copy_msgbuf_to_utcb(Nova::Utcb *utcb, Msgbuf_base *snd_msg,
unsigned num_msg_words, mword_t local_name)
{
/* look up address and size of message payload */
@ -87,11 +87,14 @@ static void copy_msgbuf_to_utcb(Nova::Utcb *utcb, Msgbuf_base *snd_msg,
int pt_sel = snd_msg->snd_pt_sel(i);
if (pt_sel < 0) continue;
utcb->append_item(Nova::Obj_crd(pt_sel, 0), i);
if (!utcb->append_item(Nova::Obj_crd(pt_sel, 0), i))
return false;
}
/* we have consumed portal capability selectors, reset message buffer */
snd_msg->snd_reset();
return true;
}
@ -133,8 +136,11 @@ void Ipc_client::_call()
{
Nova::Utcb *utcb = (Nova::Utcb *)Thread_base::myself()->utcb();
copy_msgbuf_to_utcb(utcb, _snd_msg, _write_offset/sizeof(mword_t),
Ipc_ostream::_dst.local_name());
if (!copy_msgbuf_to_utcb(utcb, _snd_msg, _write_offset/sizeof(mword_t),
Ipc_ostream::_dst.local_name())) {
PERR("could not setup IPC");
return;
}
_rcv_msg->rcv_prepare_pt_sel_window(utcb);
/* establish the mapping via a portal traversal */

4
base-nova/src/base/ipc/pager.cc
View File

@ -57,7 +57,9 @@ void Ipc_pager::set_reply_mapping(Mapping m)
{
Nova::Utcb *utcb = (Nova::Utcb *)Thread_base::myself()->utcb();
utcb->set_msg_word(0);
utcb->append_item(m.mem_crd(), m.dst_addr());
bool res = utcb->append_item(m.mem_crd(), m.dst_addr());
/* one item ever fits on the UTCB */
(void)res;
}

7
base-nova/src/base/pager/pager.cc
View File

@ -79,8 +79,11 @@ void Pager_object::_invoke_handler()
utcb->mtd = 0;
utcb->set_msg_word(0);
if (event == PT_SEL_STARTUP || event == PT_SEL_PAGE_FAULT)
utcb->append_item(Obj_crd(obj->exc_pt_sel() + event, 0), 0);
if (event == PT_SEL_STARTUP || event == PT_SEL_PAGE_FAULT) {
bool res = utcb->append_item(Obj_crd(obj->exc_pt_sel() + event, 0), 0);
/* one item ever fits on the UTCB */
(void)res;
}
reply(Thread_base::myself()->stack_top());
}