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| author |   Samuel Liao <samuelliao@tencent.com> | 2012-06-05 13:14:59 +0800 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-06-19 14:30:26 -0300 |
| commit | c0a58fb2bdf033df433cad9009c7dac4c6b872b0 (patch) | |
| tree | d4c65704aae722151a0d85cca74d1e30577c99e4 | |
| parent | perf evsel: Make some methods private (diff) | |
| download | linux-dev-c0a58fb2bdf033df433cad9009c7dac4c6b872b0.tar.xz linux-dev-c0a58fb2bdf033df433cad9009c7dac4c6b872b0.zip | |
perf annotate: Check null of sym pointer before using it
Sym may be NULL, and that will cause perf to crash.
Signed-off-by: Shan Wei <davidshan@tencent.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/4FCD95D3.90209@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/ui/browsers/annotate.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c index 34b1c46eaf42..67a2703e666a 100644 --- a/tools/perf/ui/browsers/annotate.c +++ b/tools/perf/ui/browsers/annotate.c @@ -814,7 +814,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx, { struct disasm_line *pos, *n; struct annotation *notes; - const size_t size = symbol__size(sym); + size_t size; struct map_symbol ms = { .map = map, .sym = sym, @@ -834,6 +834,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx, if (sym == NULL) return -1; + size = symbol__size(sym); + if (map->dso->annotate_warned) return -1; |