linux-kernel - [PATCH 0/3] drm/radeon: fix up some badness when probe fails

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Message-ID: <20251018054451.259432-1-daniel@0x0f.com>
Date: Sat, 18 Oct 2025 14:44:48 +0900
From: Daniel Palmer <daniel@...f.com>
To: alexander.deucher@....com,
	christian.koenig@....com,
	airlied@...il.com,
	simona@...ll.ch,
	wuhoipok@...il.com
Cc: amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Daniel Palmer <daniel@...f.com>
Subject: [PATCH 0/3] drm/radeon: fix up some badness when probe fails

I have been trying to get a Radeon 9250 running on an Amiga 4000[0].

On that setup it fails to find the BIOS and the probe fails which is
expected but then a bunch of WARN_ON()s etc are triggered.

I though maybe this is "m68k problems" so I bought an old x86 board and
there if I have a different primary VGA card the BIOS part of the
probe fails in the same way and the same scary messages[1] are showing
up in the console.

It seems like the probe failure path wasn't tested when some previous
cleaning up happened.

I'll fix the issues with not finding the BIOS if the card wasn't
initialised in the normal x86 way later.

0 - https://lore.kernel.org/lkml/20251007092313.755856-1-daniel@thingy.jp/
1 - https://gist.github.com/fifteenhex/b971bd62c49383a0558395c62c05ce3b

Daniel Palmer (3):
  drm/radeon: Clean up pdev->dev instances in probe
  drm/radeon: Do not kfree() devres managed rdev
  drm/radeon: Remove calls to drm_put_dev()

 drivers/gpu/drm/radeon/radeon_drv.c | 34 ++++++++---------------------
 drivers/gpu/drm/radeon/radeon_kms.c |  1 -
 2 files changed, 9 insertions(+), 26 deletions(-)

-- 
2.51.0