@@ -753,6 +753,11 @@ i40e_status i40e_nvmupd_command(struct i40e_hw *hw,
hw->nvmupd_state = I40E_NVMUPD_STATE_INIT;
}
+ /* Acquire lock to prevent race condition where adminq_task
+ * can execute after i40e_nvmupd_nvm_read/write but before state
+ * variables (nvm_wait_opcode, nvm_release_on_done) are updated
+ */
+ mutex_lock(&hw->aq.arq_mutex);
switch (hw->nvmupd_state) {
case I40E_NVMUPD_STATE_INIT:
status = i40e_nvmupd_state_init(hw, cmd, bytes, perrno);
@@ -788,6 +793,7 @@ i40e_status i40e_nvmupd_command(struct i40e_hw *hw,
*perrno = -ESRCH;
break;
}
+ mutex_unlock(&hw->aq.arq_mutex);
return status;
}