drm/nouveau: prime: fix refcount underflow

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[ Upstream commit a9bf3efc33 ]

Calling nouveau_bo_ref() on a nouveau_bo without initializing it (and
hence the backing ttm_bo) leads to a refcount underflow.

Instead of calling nouveau_bo_ref() in the unwind path of
drm_gem_object_init(), clean things up manually.

Fixes: ab9ccb96a6 ("drm/nouveau: use prime helpers")
Reviewed-by: Ben Skeggs <bskeggs@nvidia.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240718165959.3983-2-dakr@kernel.org
(cherry picked from commit 1b93f3e89d)
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Danilo Krummrich 2024-07-18 18:58:46 +02:00 • committed by Greg Kroah-Hartman

parent 1b46b23561

commit f23cd66933

1 changed files with 2 additions and 1 deletions

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drivers/gpu/drm/nouveau/nouveau_prime.c

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