kernel-shark: Don't use Data collection when checking if the bin is empty

When plotting a task graph and no data from the Task is found in the bin,
we check the CPU, previously used by the task, searching for data from
another task running on the same CPU. However this search will always
fail if we use the Data collection of the plotted task.

Link: http://lore.kernel.org/linux-trace-devel/20190213161216.14438-5-ykaradzhov@vmware.com

Fixes: ba206aaa45 ("kernel-shark-qt: Add C++ API for drawing of Graphs")
Signed-off-by: Yordan Karadzhov <ykaradzhov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
1 file changed