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audio: Clean up inappropriate and unreachable use of hw_error() 

audio_init() should not use hw_error(), because dumping CPU registers
is unhelpful there, and aborting is wrong, because it can be called
called from an audio device's realize() method.

The two uses of hw_error() come from commit 0d9acba:

* When qemu_new_timer() fails.  It couldn't fail back then, and it
  can't fail now.  Drop the unreachable error handling.

* When no_audio_driver can't be initialized.  It couldn't fail back
  then, and it can't fail now.  Replace the error handling by an
  assertion.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Markus Armbruster 2015-12-17 17:35:20 +01:00
parent 675463d9b6
commit 7e274652e4
1 changed files with 2 additions and 9 deletions
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11
audio/audio.c
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@ -1806,9 +1806,6 @@ static void audio_init (void)
atexit (audio_atexit);
s->ts = timer_new_ns(QEMU_CLOCK_VIRTUAL, audio_timer, s);
if (!s->ts) {
hw_error("Could not create audio timer\n");
}
audio_process_options ("AUDIO", audio_options);
@ -1859,12 +1856,8 @@ static void audio_init (void)
if (!done) {
done = !audio_driver_init (s, &no_audio_driver);
if (!done) {
hw_error("Could not initialize audio subsystem\n");
}
else {
dolog ("warning: Using timer based audio emulation\n");
}
assert(done);
dolog("warning: Using timer based audio emulation\n");
}
if (conf.period.hertz <= 0) {