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perf tools: Use zfree to help detect use after free bugs

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Several areas already used this technique, so do some audit to
consistently use it elsewhere.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-9sbere0kkplwe45ak6rk4a1f@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2013-12-27 16:55:14 -03:00
parent 046625231a
commit 74cf249d5c
29 changed files with 83 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
tools/perf/util/annotate.c
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@@ -26,10 +26,10 @@ static int disasm_line__parse(char *line, char **namep, char **rawp);
static void ins__delete(struct ins_operands *ops)
{
free(ops->source.raw);
free(ops->source.name);
free(ops->target.raw);
free(ops->target.name);
zfree(&ops->source.raw);
zfree(&ops->source.name);
zfree(&ops->target.raw);
zfree(&ops->target.name);
}
static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
@@ -204,9 +204,9 @@ static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
static void lock__delete(struct ins_operands *ops)
{
free(ops->locked.ops);
free(ops->target.raw);
free(ops->target.name);
zfree(&ops->locked.ops);
zfree(&ops->target.raw);
zfree(&ops->target.name);
}
static struct ins_ops lock_ops = {
@@ -583,7 +583,7 @@ static struct disasm_line *disasm_line__new(s64 offset, char *line, size_t privs
return dl;
out_free_line:
free(dl->line);
zfree(&dl->line);
out_delete:
free(dl);
return NULL;
@@ -591,8 +591,8 @@ out_delete:
void disasm_line__free(struct disasm_line *dl)
{
free(dl->line);
free(dl->name);
zfree(&dl->line);
zfree(&dl->name);
if (dl->ins && dl->ins->ops->free)
dl->ins->ops->free(&dl->ops);
else