perf probe: Release resources on error when handling exit paths

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Colin King <colin.king@canonical.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-zh2j4iqimralugke5qq7dn6d@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index a8e7623..9c3b9ed 100644 (file)
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -143,6 +143,8 @@ struct strlist *probe_file__get_rawlist(int fd)
                return NULL;
 
        sl = strlist__new(NULL, NULL);
+       if (sl == NULL)
+               return NULL;
 
        fddup = dup(fd);
        if (fddup < 0)
@@ -163,14 +165,16 @@ struct strlist *probe_file__get_rawlist(int fd)
                ret = strlist__add(sl, buf);
                if (ret < 0) {
                        pr_debug("strlist__add failed (%d)\n", ret);
-                       strlist__delete(sl);
-                       return NULL;
+                       goto out_close_fp;
                }
        }
        fclose(fp);
 
        return sl;
 
+out_close_fp:
+       fclose(fp);
+       goto out_free_sl;
 out_close_fddup:
        close(fddup);
 out_free_sl:
@@ -467,8 +471,10 @@ static int probe_cache__load(struct probe_cache *pcache)
        if (fddup < 0)
                return -errno;
        fp = fdopen(fddup, "r");
-       if (!fp)
+       if (!fp) {
+               close(fddup);
                return -EINVAL;
+       }
 
        while (!feof(fp)) {
                if (!fgets(buf, MAX_CMDLEN, fp))