drm/amdkfd: Add crash protection in debugger register path

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After debugger is registered, the pqm_destroy_queue fails because is_debug
is true, the queue should not be removed from process_queue_list since
the count is not reduced.

Test application calls debugger unregister without register debugger, add
null pointer check protection to avoid crash for this case

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>

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Philip Yang 2017-11-27 18:29:44 -05:00 • committed by Oded Gabbay

parent a9efcc1916

commit 3c0b428090

2 changed files with 6 additions and 1 deletions

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2

drivers/gpu/drm/amd/amdkfd/kfd_chardev.c

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5

drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c

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