iowatcher: Fix crash due to missing queue action

When queue action was missing from a trace, handling of dispatch didn't
quite get things right and crashed due to NULL pointer dereference.
Fix it.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
1 file changed
tree: 97dafed12b478c760e5bc482fd35e6b19a249223
  1. iowatcher/