Fixed some NULL pointer references in callback handling.

Author ranzbak <ranzbak@88541080-9ad6-de11-9093-5254007c1f44>
Author date 2011-03-15 14:41:19
Author local date 2011-03-15 14:41:19 +0000
Committer ranzbak <ranzbak@88541080-9ad6-de11-9093-5254007c1f44>
Committer date 2011-03-15 14:41:19
Committer local date 2011-03-15 14:41:19 +0000
Commit ebf938ba523f1916ae63bfe0643c35c5e88d9be1
Tree a026912dfb5fba6245f5d14433f98bd660af9a4b
Parent 9252fd1651284b0f48aa216f5c73ddf15d4d46e5
Fixed some NULL pointer references in callback handling.

git-svn-id: https://old.setv.nl/svn/swarmtv@304 88541080-9ad6-de11-9093-5254007c1f44