forked from luck/tmp_suning_uos_patched
sfc: Clear I2C adapter structure in falcon_remove_nic()
i2c_del_adapter() leaves dangling pointers in the structure. If we retry the NIC probe and pass the structure to i2c_add_adapter() again it will lead to an oops unless we clear it first. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -3114,8 +3114,10 @@ void falcon_remove_nic(struct efx_nic *efx)
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struct falcon_nic_data *nic_data = efx->nic_data;
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int rc;
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/* Remove I2C adapter and clear it in preparation for a retry */
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rc = i2c_del_adapter(&efx->i2c_adap);
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BUG_ON(rc);
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memset(&efx->i2c_adap, 0, sizeof(efx->i2c_adap));
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falcon_remove_spi_devices(efx);
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falcon_free_buffer(efx, &efx->irq_status);
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