diff options
| author | Markus Elfring <[email protected]> | 2023-04-13 14:46:39 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2023-04-13 19:01:51 -0300 |
| commit | c160118a90d4acf335993d8d59b02ae2147a524e (patch) | |
| tree | 587c4359173cecf3da676731d164378171b3a4e6 /tools/perf/scripts/python/flamegraph.py | |
| parent | ee31f6fea61c332100d2161081abbdfe65411fe9 (diff) | |
perf map: Delete two variable initialisations before null pointer checks in sort__sym_from_cmp()
Addresses of two data structure members were determined before
corresponding null pointer checks in the implementation of the function
“sort__sym_from_cmp”.
Thus avoid the risk for undefined behaviour by removing extra
initialisations for the local variables “from_l” and “from_r” (also
because they were already reassigned with the same value behind this
pointer check).
This issue was detected by using the Coccinelle software.
Fixes: 1b9e97a2a95e4941 ("perf tools: Fix report -F symbol_from for data without branch info")
Signed-off-by: <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: German Gomez <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/cocci/[email protected]/
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions