perf trace scripting: fix some small memory leaks and missing error checks
Free the other two fields of script_desc which somehow got overlooked,
free malloc'ed args in case exec fails, and add missing checks for
failed mallocs.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Acked-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 2f8df45..368e624 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -337,6 +337,8 @@
static void script_desc__delete(struct script_desc *s)
{
free(s->name);
+ free(s->half_liner);
+ free(s->args);
free(s);
}
@@ -626,6 +628,9 @@
close(live_pipe[0]);
__argv = malloc(6 * sizeof(const char *));
+ if (!__argv)
+ die("malloc");
+
__argv[0] = "/bin/sh";
__argv[1] = record_script_path;
__argv[2] = "-q";
@@ -634,6 +639,7 @@
__argv[5] = NULL;
execvp("/bin/sh", (char **)__argv);
+ free(__argv);
exit(-1);
}
@@ -641,6 +647,8 @@
close(live_pipe[1]);
__argv = malloc((argc + 3) * sizeof(const char *));
+ if (!__argv)
+ die("malloc");
__argv[0] = "/bin/sh";
__argv[1] = report_script_path;
for (i = 2; i < argc; i++)
@@ -650,6 +658,7 @@
__argv[i++] = NULL;
execvp("/bin/sh", (char **)__argv);
+ free(__argv);
exit(-1);
}
@@ -661,6 +670,8 @@
}
__argv = malloc((argc + 1) * sizeof(const char *));
+ if (!__argv)
+ die("malloc");
__argv[0] = "/bin/sh";
__argv[1] = script_path;
for (i = 3; i < argc; i++)
@@ -668,6 +679,7 @@
__argv[argc - 1] = NULL;
execvp("/bin/sh", (char **)__argv);
+ free(__argv);
exit(-1);
}