nrf_wifi: Fix TX de-init crash #1277
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krish2718
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sachinthegreen
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Interrupts should be disabled early to avoid further events coming up the driver. Signed-off-by: Chaitanya Tata <[email protected]>
The HAL status is used internally, but the API was never called, so, hook up the API to dev init/deinit. Signed-off-by: Chaitanya Tata <[email protected]>
Draining should be done early to avoid any event handlers being called after, also, remove the check for HAL status, as drain doesn't invoke the event handlers, this fixes the memory leak. Signed-off-by: Chaitanya Tata <[email protected]>
Use the unused HAL de-init API before proceeding with FMAC de-init, this way we can move the entire logic and locking to HAL de-init, so, remove the HAL locks in FMAC. Signed-off-by: Chaitanya Tata <[email protected]>
In current SAP implementation based on a single VIF, we modify the VIF type from STA->AP and vice-versa, so, call the API to update the counts properly. The counts are crucial to remove the RPU during interface down. Signed-off-by: Chaitanya Tata <[email protected]>
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If interface is de-initialized during active traffic, then the HAL RX lock still doesn't protect the full de-initialization path, there is a race after TX de-init, lock is released and before the FMAC context is de-initialized the NULL checks elsewhere pass and can lead to crashes.
Add an atomic API that does both de-initialization and removal by taking the HAL RX lock for both operations, this way FMAC context is freed and NULL checks should avoid any crashes.
Fixes SHEL-2436.