iwlwifi: mvm: guard against device removal in reprobe

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[ Upstream commit 7a21b1d4a7 ]

If we get into a problem severe enough to attempt a reprobe,
we schedule a worker to do that. However, if the problem gets
more severe and the device is actually destroyed before this
worker has a chance to run, we use a free device. Bump up the
reference count of the device until the worker runs to avoid
this situation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210122144849.871f0892e4b2.I94819e11afd68d875f3e242b98bef724b8236f1e@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Johannes Berg 2021-01-22 14:52:41 +02:00 • committed by Greg Kroah-Hartman

parent 2262294d42

commit 38da9b033b

1 changed files with 2 additions and 1 deletions

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drivers/net/wireless/intel/iwlwifi/mvm/ops.c

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