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perf probe: Release all dynamically allocated parameters

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To fix a memory leak, release all dynamically allocated
options/parameters in params data structure. This also
introduces/exports some init/clear routines.

Reported-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: "David A. Long" <dave.long@linaro.org>
Cc: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20140116093947.24403.80118.stgit@kbuild-fedora.novalocal
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Masami Hiramatsu
2014-01-16 09:39:47 +00:00
committed by Arnaldo Carvalho de Melo
parent 981d05adf2
commit e53b00d382
3 changed files with 71 additions and 5 deletions
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22
tools/perf/util/probe-event.c
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@@ -794,6 +794,28 @@ int show_available_vars(struct perf_probe_event *pevs __maybe_unused,
}
#endif
void line_range__clear(struct line_range *lr)
{
struct line_node *ln;
free(lr->function);
free(lr->file);
free(lr->path);
free(lr->comp_dir);
while (!list_empty(&lr->line_list)) {
ln = list_first_entry(&lr->line_list, struct line_node, list);
list_del(&ln->list);
free(ln);
}
memset(lr, 0, sizeof(*lr));
}
void line_range__init(struct line_range *lr)
{
memset(lr, 0, sizeof(*lr));
INIT_LIST_HEAD(&lr->line_list);
}
static int parse_line_num(char **ptr, int *val, const char *what)
{
const char *start = *ptr;