iwlwifi: pcie: don't crash on invalid RX interrupt

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If for some reason the device gives us an RX interrupt before we're
ready for it, perhaps during device power-on with misconfigured IRQ
causes mapping or so, we can crash trying to access the queues.

Prevent that by checking that we actually have RXQs and that they
were properly allocated.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

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Johannes Berg 2019-03-05 10:31:11 +01:00 • committed by Luca Coelho

parent c5bf4fa142

commit 30f24eabab

1 changed files with 6 additions and 1 deletions

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7

drivers/net/wireless/intel/iwlwifi/pcie/rx.c

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