tree 80a3a3876e242bb2d0d7ca72a977604fed94deeb
parent 288c8698cb2841c3f486d0d140e0c4e23c2ad2b8
author punyabrata@google.com <punyabrata@google.com@4adac7df-926f-26a2-2b94-8c16560cd09d> 1314052514 +0000
committer punyabrata@google.com <punyabrata@google.com@4adac7df-926f-26a2-2b94-8c16560cd09d> 1314052514 +0000

Resolve a crash related to pulseAudio where we need to check if
pa_context_get_source_info_by_name/pa_context_get_sink_info_by_name 
has early failure and returns NULL,then to avoid WaitForOperationCompletion
from crashing, paOperation must be checked to ensure it is not NULL.

Please note that ::WaitForOperationCompletion( ) is a void function
therefore returning without any error code if paOperation is indeed NULL

Google internal bug id [4356730]
Review URL: http://webrtc-codereview.appspot.com/122003

git-svn-id: http://webrtc.googlecode.com/svn/trunk@417 4adac7df-926f-26a2-2b94-8c16560cd09d