ionic: disable napi when ionic_lif_init() fails
When the driver is going through reset, it will eventually call ionic_lif_init(), which does a lot of re-initialization. One of the re-initialization steps is to setup the adminq and enable napi for it. If something breaks after this point we can end up with a kernel NULL pointer dereference through ionic_adminq_napi. Fix this by making sure to call napi_disable() in the cleanup path of ionic_lif_init(). This forces any pending napi contexts to finish and prevents them from being recalled before deleting the napi context. Fixes: 77ceb68e ("ionic: Add notifyq support") Signed-off-by: Brett Creeley <brett@pensando.io> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
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