[PATCH 4.8 094/125] perf hists browser: Fix event group display

4.8-stable review patch. If anyone has any objections, please let me know. -- From: Namhyung Kim commit d9ea48bc4e7cc297ca1073fa3f90ed80d964b7b4 upstream. Milian reported that the event group on TUI shows duplicated overhead. This was due to a bug on

[PATCH 4.8 094/125] perf hists browser: Fix event group display

4.8-stable review patch. If anyone has any objections, please let me know. -- From: Namhyung Kim commit d9ea48bc4e7cc297ca1073fa3f90ed80d964b7b4 upstream. Milian reported that the event group on TUI shows duplicated overhead. This was due to a bug on calculating hpp->buf