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[PULL 23/25] audio: remove abort() in audio_bug()


From: Gerd Hoffmann
Subject: [PULL 23/25] audio: remove abort() in audio_bug()
Date: Mon, 26 Sep 2022 11:55:07 +0200

From: Volker RĂ¼melin <vr_qemu@t-online.de>

Commit ab32b78cd1 "audio: Simplify audio_bug() removing old code"
introduced abort() in audio_bug() for regular builds.

audio_bug() was never meant to abort QEMU for the following
reasons.

  - There's code in audio_bug() that expects audio_bug() gets
    called more than once with error condition true. The variable
    'shown' is only 0 on first error.

  - All call sites test the return code of audio_bug(), print
    an error context message and handle the errror.

  - The abort() in audio_bug() enables a class of guest-triggered
    aborts similar to the Launchpad Bug #1910603 at
    https://bugs.launchpad.net/bugs/1910603.

Fixes: ab32b78cd1 "audio: Simplify audio_bug() removing old code"
Buglink: https://bugs.launchpad.net/bugs/1910603
Signed-off-by: Volker RĂ¼melin <vr_qemu@t-online.de>
Message-Id: <20220917131626.7521-2-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 audio/audio.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/audio/audio.c b/audio/audio.c
index d96a13055940..df6818ed5598 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -118,7 +118,6 @@ int audio_bug (const char *funcname, int cond)
             AUD_log (NULL, "I am sorry\n");
         }
         AUD_log (NULL, "Context:\n");
-        abort();
     }
 
     return cond;
-- 
2.37.3




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