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Destroy admin queue after freeing interrupts in ENA driver

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On heavy load, when interrupt handling routine was slowed down, there
could appear memory corruption, because resources were destroyed and
interrupt was still being handled.

Submitted by: Michal Krawczyk <mk@semihalf.com>
Reviewed by: byenduri_gmail.com
Obtained from: Semihalf
Sponsored by: Amazon, Inc.
Differential Revision: https://reviews.freebsd.org/D12858
This commit is contained in:
Marcin Wojtas 2017-11-09 11:52:52 +00:00
parent 74dba3ad78
commit 197f028470
1 changed files with 6 additions and 2 deletions
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8
sys/dev/ena/ena.c
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@ -3862,10 +3862,14 @@ ena_detach(device_t pdev)
ena_com_delete_host_info(ena_dev);
ena_com_admin_destroy(ena_dev);
ena_free_irqs(adapter);
ena_com_abort_admin_commands(ena_dev);
ena_com_wait_for_abort_completion(ena_dev);
ena_com_admin_destroy(ena_dev);
ena_com_mmio_reg_read_request_destroy(ena_dev);
ena_free_pci_resources(adapter);