diff --git a/drivers/crypto/atmel-ecc.c b/drivers/crypto/atmel-ecc.c index 59a57279e77bfc4609de022f6d4d07747a5c0935..a4b13d326cfc69ee8f21e6657f30fd87dd773a5e 100644 --- a/drivers/crypto/atmel-ecc.c +++ b/drivers/crypto/atmel-ecc.c @@ -349,8 +349,16 @@ static int atmel_ecc_remove(struct i2c_client *client) /* Return EBUSY if i2c client already allocated. */ if (atomic_read(&i2c_priv->tfm_count)) { - dev_err(&client->dev, "Device is busy\n"); - return -EBUSY; + /* + * After we return here, the memory backing the device is freed. + * That happens no matter what the return value of this function + * is because in the Linux device model there is no error + * handling for unbinding a driver. + * If there is still some action pending, it probably involves + * accessing the freed memory. + */ + dev_emerg(&client->dev, "Device is busy, expect memory corruption.\n"); + return 0; } crypto_unregister_kpp(&atmel_ecdh_nist_p256);