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rsi: add fix for crash during assertions

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commit abd39c6ded9db53aa44c2540092bdd5fb6590fa8 upstream.

Observed crash in some scenarios when assertion has occurred,
this is because hw structure is freed and is tried to get
accessed in some functions where null check is already
present. So, avoided the crash by making the hw to NULL after
freeing.

Signed-off-by: Sanjay Konduri <sanjay.konduri@redpinesignals.com>
Signed-off-by: Sushant Kumar Mishra <sushant.mishra@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sanjay Konduri 2018-05-15 14:34:30 +05:30 committed by Greg Kroah-Hartman
parent f3848952e0
commit ba8bbddaa1
1 changed files with 1 additions and 0 deletions
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drivers/net/wireless/rsi/rsi_91x_mac80211.c
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@ -218,6 +218,7 @@ void rsi_mac80211_detach(struct rsi_hw *adapter)
ieee80211_stop_queues(hw);
ieee80211_unregister_hw(hw);
ieee80211_free_hw(hw);
adapter->hw = NULL;
}
for (band = 0; band < NUM_NL80211_BANDS; band++) {