Re: [PATCH] drm/nouveau: nouveau_sched_fini() should check for init failure

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On 2/1/24 17:20, Timur Tabi wrote:
On Thu, 2024-02-01 at 13:58 +0100, Danilo Krummrich wrote:
I wonder if we should allocate struct nouveau_sched dynamically instead and
just
check for NULL in the corresponding *_fini() functions.

Actually, in nouveau_abi16_ioctl_channel_alloc() we can omit creating a
scheduler
instance entirely if !nouveau_cli_uvmm().

I am all for a better solution if you can think of one.  I don't really like
the idea of "bool initialized", but I couldn't think of a more reliable test.

Yeah, it's not really ideal that there is a single error path calling the
corresponding *_fini() in nouveau_abi16_ioctl_channel_alloc() and
nouveau_cli_init() only. Maybe this can be re-worked to only reverse what has
actually been done already.

However, I'd probably not do that for -fixes. Maybe we should go with the dynamic
allocation and a NULL check for now.

Do you want to send another patch? Otherwise I can also come up with something and
add your Reported-by.

- Danilo







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