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Mingming Cao authored
At the time of do_rest, ibmvnic tries to re-initalize the tx_pools and rx_pools to avoid re-allocating the long term buffer. However there is a window inside do_reset that the tx_pools and rx_pools were freed before re-initialized making it possible to deference null pointers. This patch fix this issue by always check the tx_pool and rx_pool are not NULL after ibmvnic_login. If so, re-allocating the pools. This will avoid getting into calling reset_tx/rx_pools with NULL adapter tx_pools/rx_pools pointer. Also add null pointer check in reset_tx_pools and reset_rx_pools to safe handle NULL pointer case. Signed-off-by:
Mingming Cao <mmc@linux.vnet.ibm.com> Signed-off-by:
Dany Madden <drt@linux.ibm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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