Merge from default branch

--HG--
branch : product-engine

3 files changed, 17 insertions, 9 deletions

diff --git a/indra/llui/llmenugl.cpp b/indra/llui/llmenugl.cpp
index c172a2b714..ceb1e9820e 100644
--- a/indra/llui/llmenugl.cpp
+++ b/indra/llui/llmenugl.cpp
@@ -1875,17 +1875,21 @@ void LLMenuGL::scrollItemsDown()
 
 	item_list_t::iterator next_item_iter;
 
-	for (next_item_iter = ++cur_item_iter; next_item_iter != mItems.end(); next_item_iter++)
+	if (cur_item_iter != mItems.end())
 	{
-		if( (*next_item_iter)->getVisible())
+		for (next_item_iter = ++cur_item_iter; next_item_iter != mItems.end(); next_item_iter++)
 		{
-			break;
+			if( (*next_item_iter)->getVisible())
+			{
+				break;
+			}
+		}
+		
+		if (next_item_iter != mItems.end() &&
+		    (*next_item_iter)->getVisible())
+		{
+			mFirstVisibleItem = *next_item_iter;
 		}
-	}
-
-	if ((*next_item_iter)->getVisible())
-	{
-		mFirstVisibleItem = *next_item_iter;
 	}
 	
 	mNeedsArrange = TRUE;
diff --git a/indra/llui/llnotifications.cpp b/indra/llui/llnotifications.cpp
index 86989012ee..a67094b8ce 100644
--- a/indra/llui/llnotifications.cpp
+++ b/indra/llui/llnotifications.cpp
@@ -1058,6 +1058,7 @@ LLNotificationChannelPtr LLNotifications::getChannel(const std::string& channelN
 	if(p == mChannels.end())
 	{
 		llerrs << "Did not find channel named " << channelName << llendl;
+		return LLNotificationChannelPtr();
 	}
 	return p->second;
 }
diff --git a/indra/llui/lltabcontainer.cpp b/indra/llui/lltabcontainer.cpp
index dcb3542e18..6be76605fd 100644
--- a/indra/llui/lltabcontainer.cpp
+++ b/indra/llui/lltabcontainer.cpp
@@ -1590,7 +1590,10 @@ void LLTabContainer::onTabBtn( const LLSD& data, LLPanel* panel )
 	LLTabTuple* tuple = getTabByPanel(panel);
 	selectTabPanel( panel );
 
-	tuple->mTabPanel->setFocus(TRUE);
+	if (tuple)
+	{
+		tuple->mTabPanel->setFocus(TRUE);
+	}
 }
 
 void LLTabContainer::onNextBtn( const LLSD& data )