net: ena: fix crash during failed resume from hibernation

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During resume from hibernation if ena_restore_device fails,
ena_com_dev_reset() is called, and uses the readless read mechanism,
which was already destroyed by the call to
ena_com_mmio_reg_read_request_destroy(). This causes a NULL pointer
reference.

In this commit we switch the call order of the above two functions
to avoid this crash.

Fixes: d7703ddbd7 ("net: ena: fix rare bug when failed restart/resume is followed by driver removal")
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Arthur Kiyanovski 2018-11-19 12:05:20 +02:00 • committed by David S. Miller

parent e1e4647984

commit e76ad21d07

1 changed files with 1 additions and 1 deletions

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drivers/net/ethernet/amazon/ena/ena_netdev.c

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