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[Qemu-devel] [PATCH] tests: fix tpm-crb tpm-tis tests race


From: Stefan Berger
Subject: [Qemu-devel] [PATCH] tests: fix tpm-crb tpm-tis tests race
Date: Tue, 8 May 2018 11:29:35 -0400

From: Marc-André Lureau <address@hidden>

No need to close the TPM data socket on the emulator end, qemu will
close it after a SHUTDOWN. This avoids a race between close() and
read() in the TPM data thread.

Reported-by: Peter Maydell <address@hidden>
Signed-off-by: Marc-André Lureau <address@hidden>
Signed-off-by: Stefan Berger <address@hidden>
---
 tests/tpm-emu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/tpm-emu.c b/tests/tpm-emu.c
index 4dada76..8c2bd53 100644
--- a/tests/tpm-emu.c
+++ b/tests/tpm-emu.c
@@ -125,7 +125,7 @@ void *tpm_emu_ctrl_thread(void *data)
         case CMD_SHUTDOWN: {
             ptm_res res = 0;
             qio_channel_write(ioc, (char *)&res, sizeof(res), &error_abort);
-            qio_channel_close(s->tpm_ioc, &error_abort);
+            /* the tpm data thread is expected to finish now */
             g_thread_join(s->emu_tpm_thread);
             break;
         }
-- 
2.5.5




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