alsa writer: Do not print uninitialized data.

[paraslash.git] / alsa_write.c

diff --git a/alsa_write.c b/alsa_write.c
index 0563ba73ab5af59658a5a327ba762f0c8c26af63..88e48b4524717bc832201d7e5c5cac75976abffc 100644 (file)
--- a/alsa_write.c
+++ b/alsa_write.c
@@ -164,17 +164,18 @@ static int alsa_init(struct private_alsa_write_data *pad,
                goto fail;
        ret = snd_output_buffer_open(&output_log);
        if (ret == 0) {
-               char *buf;
+               char *buf, *p;
+               size_t sz;
                PARA_INFO_LOG("dumping alsa configuration\n");
                snd_pcm_dump(pad->handle, output_log);
-               snd_output_buffer_string(output_log, &buf);
-               for (;;) {
-                       char *p = strchr(buf, '\n');
-                       if (!p) /* omit last output line, it's empty */
+               sz = snd_output_buffer_string(output_log, &buf);
+               for (p = buf; p < buf + sz;) {
+                       char *q = memchr(p, '\n', buf + sz - p);
+                       if (!q)
                                break;
-                       *p = '\0';
-                       PARA_INFO_LOG("%s\n", buf);
-                       buf = p + 1;
+                       *q = '\0';
+                       PARA_INFO_LOG("%s\n", p);
+                       p = q + 1;
                }
                snd_output_close(output_log);
        }