qemu: tpm: Use g_autofree in qemuTPMEmulatorGetPid

Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

src/qemu/qemu_tpm.c

@@ -277,15 +277,13 @@ qemuTPMEmulatorGetPid(const char *swtpmStateDir,
 {
     int ret;
     g_autofree char *swtpm = virTPMGetSwtpm();
-    char *pidfile = qemuTPMEmulatorCreatePidFilename(swtpmStateDir,
-                                                     shortName);
+    g_autofree char *pidfile = qemuTPMEmulatorCreatePidFilename(swtpmStateDir,
+                                                                shortName);
     if (!pidfile)
         return -ENOMEM;
 
     ret = virPidFileReadPathIfAlive(pidfile, pid, swtpm);
 
-    VIR_FREE(pidfile);
-
     return ret;
 }