drm/panthor: Keep a ref to the VM at the panthor_kernel_bo level

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Avoids use-after-free situations when panthor_fw_unplug() is called
and the kernel BO was mapped to the FW VM.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240502183813.1612017-3-boris.brezillon@collabora.com

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This commit is contained in:

Boris Brezillon 2024-05-02 20:38:10 +02:00

parent 2b2a26b331

commit ff60c8da0a

5 changed files with 22 additions and 17 deletions

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4

drivers/gpu/drm/panthor/panthor_fw.c

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8

drivers/gpu/drm/panthor/panthor_gem.c

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8

drivers/gpu/drm/panthor/panthor_gem.h

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8

drivers/gpu/drm/panthor/panthor_heap.c

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11

drivers/gpu/drm/panthor/panthor_sched.c

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