Commit-ID: c896f85a7c15ab9d040ffac8b8003e47996602a2
Gitweb: http://git.kernel.org/tip/c896f85a7c15ab9d040ffac8b8003e47996602a2
Author: Martin Kepplinger <martink@xxxxxxxxx>
AuthorDate: Wed, 13 Sep 2017 21:14:19 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 18 Sep 2017 09:40:21 -0300
perf tools: Fix leaking rec_argv in error cases
Let's free the allocated rec_argv in case we return early, in order to
avoid leaking memory.
This adds free() at a few very similar places across the tree where it
was missing.
Signed-off-by: Martin Kepplinger <martink@xxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Martin kepplinger <martink@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20170913191419.29806-1-martink@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-c2c.c | 1 +
tools/perf/builtin-mem.c | 1 +
tools/perf/builtin-timechart.c | 4 +++-
tools/perf/builtin-trace.c | 1 +
4 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 475999e..bb1ee22 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -2732,6 +2732,7 @@ static int perf_c2c__record(int argc, const char **argv)
if (!perf_mem_events[j].supported) {
pr_err("failed: event '%s' not supported\n",
perf_mem_events[j].name);
+ free(rec_argv);
return -1;
}
diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index 0f15634..6940490 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -112,6 +112,7 @@ static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
if (!perf_mem_events[j].supported) {
pr_err("failed: event '%s' not supported\n",
perf_mem_events__name(j));
+ free(rec_argv);
return -1;
}
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 4e2e616..01de01c 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -1732,8 +1732,10 @@ static int timechart__io_record(int argc, const char **argv)
if (rec_argv == NULL)
return -ENOMEM;
- if (asprintf(&filter, "common_pid != %d", getpid()) < 0)
+ if (asprintf(&filter, "common_pid != %d", getpid()) < 0) {
+ free(rec_argv);
return -ENOMEM;
+ }
p = rec_argv;
for (i = 0; i < common_args_nr; i++)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index ee8c6e8..967bd35 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2078,6 +2078,7 @@ static int trace__record(struct trace *trace, int argc, const char **argv)
rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit";
else {
pr_err("Neither raw_syscalls nor syscalls events exist.\n");
+ free(rec_argv);
return -1;
}
}
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