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perf tools: Use list_del_init() more thorougly

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To allow for destructors to check if they're operating on a object still
in a list, and to avoid going from use after free list entries into
still valid, or even also other already removed from list entries.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-deh17ub44atyox3j90e6rksu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2019-07-04 12:13:46 -03:00
parent d8f9da2404
commit e56fbc9dc7
22 changed files with 38 additions and 38 deletions
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2
tools/perf/util/srccode.c
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@@ -83,7 +83,7 @@ static void fill_lines(char **lines, int maxline, char *map, int maplen)
static void free_srcfile(struct srcfile *sf)
{
list_del(&sf->nd);
list_del_init(&sf->nd);
hlist_del(&sf->hash_nd);
map_total_sz -= sf->maplen;
munmap(sf->map, sf->maplen);