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Re: [Qemu-devel] [PATCH 11/12] audio: Clean up inappropriate and unreach
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [PATCH 11/12] audio: Clean up inappropriate and unreachable use of hw_error() |
Date: |
Tue, 15 Dec 2015 11:07:34 +0100 |
On Do, 2015-12-10 at 11:29 +0100, Markus Armbruster wrote:
> 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 <address@hidden>
> Signed-off-by: Markus Armbruster <address@hidden>
Reviewed-by: Gerd Hoffmann <address@hidden>
> ---
> audio/audio.c | 11 ++---------
> 1 file changed, 2 insertions(+), 9 deletions(-)
>
> diff --git a/audio/audio.c b/audio/audio.c
> index 5be4b15..9b855ed 100644
> --- a/audio/audio.c
> +++ b/audio/audio.c
> @@ -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) {
- Re: [Qemu-devel] [PATCH 04/12] etraxfs_eth: Don't use hw_error() in init() method, (continued)
- [Qemu-devel] [PATCH 01/12] hw: Don't use hw_error() for machine initialization errors, Markus Armbruster, 2015/12/10
- [Qemu-devel] [PATCH 03/12] arm_mptimer: Don't use hw_error() in realize() method, Markus Armbruster, 2015/12/10
- [Qemu-devel] [PATCH 06/12] hw/arm/virt: Fix property "gic-version" error handling, Markus Armbruster, 2015/12/10
- [Qemu-devel] [PATCH 11/12] audio: Clean up inappropriate and unreachable use of hw_error(), Markus Armbruster, 2015/12/10
- Re: [Qemu-devel] [PATCH 11/12] audio: Clean up inappropriate and unreachable use of hw_error(),
Gerd Hoffmann <=
- [Qemu-devel] [PATCH 07/12] sysbus: Don't use hw_error() in machine_init_done_notifiers, Markus Armbruster, 2015/12/10
- [Qemu-devel] [PATCH 12/12] xen-hvm: Mark inappropriate error handling FIXME, Markus Armbruster, 2015/12/10
- [Qemu-devel] [PATCH 09/12] isa: Clean up error handling around isa_bus_new(), Markus Armbruster, 2015/12/10