Wei Li 9ca67a4532 perf report TUI: Fix segmentation fault in perf_evsel__hists_browse() ... [ Upstream commit d61cbb859b ] The segmentation fault can be reproduced as following steps: 1) Executing perf report in tui. 2) Typing '/xxxxx' to filter the symbol to get nothing matched. 3) Pressing enter with no entry selected. Then it will report a segmentation fault. It is caused by the lack of check of browser->he_selection when accessing it's member res_samples in perf_evsel__hists_browse(). These processes are meaningful for specified samples, so we can skip these when nothing is selected. Fixes: 4968ac8fb7 ("perf report: Implement browsing of individual samples") Signed-off-by: Wei Li <liwei391@huawei.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Hanjun Guo <guohanjun@huawei.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Link: http://lore.kernel.org/lkml/20200612094322.39565-1-liwei391@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-07-16 08:16:38 +02:00
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Build	perf report: Implement browsing of individual samples	2019-03-11 16:33:19 -03:00
annotate.c	perf tools: Remove util.h from where it is not needed	2019-09-20 09:19:20 -03:00
header.c	perf tools: Remove debug.h from places where it is not needed	2019-09-20 09:19:20 -03:00
hists.c	perf report TUI: Fix segmentation fault in perf_evsel__hists_browse()	2020-07-16 08:16:38 +02:00
hists.h	perf hists browser: Pass annotation_options from tool to browser	2018-06-04 10:28:53 -03:00
map.c	perf tools: Remove util.h from where it is not needed	2019-09-20 09:19:20 -03:00
map.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
res_sample.c	perf tools: Remove util.h from where it is not needed	2019-09-20 09:19:20 -03:00
scripts.c	perf tools: Remove util.h from where it is not needed	2019-09-20 09:19:20 -03:00