diff options
Diffstat (limited to 'drivers/s390/crypto/zcrypt_queue.c')
| -rw-r--r-- | drivers/s390/crypto/zcrypt_queue.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/s390/crypto/zcrypt_queue.c b/drivers/s390/crypto/zcrypt_queue.c index 8bae6ad159a7..3c207066313c 100644 --- a/drivers/s390/crypto/zcrypt_queue.c +++ b/drivers/s390/crypto/zcrypt_queue.c @@ -40,22 +40,27 @@ static ssize_t online_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct zcrypt_queue *zq = to_ap_queue(dev)->private; + struct ap_queue *aq = to_ap_queue(dev); + struct zcrypt_queue *zq = aq->private; + int online = aq->config && zq->online ? 1 : 0; - return scnprintf(buf, PAGE_SIZE, "%d\n", zq->online); + return scnprintf(buf, PAGE_SIZE, "%d\n", online); } static ssize_t online_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct zcrypt_queue *zq = to_ap_queue(dev)->private; + struct ap_queue *aq = to_ap_queue(dev); + struct zcrypt_queue *zq = aq->private; struct zcrypt_card *zc = zq->zcard; int online; if (sscanf(buf, "%d\n", &online) != 1 || online < 0 || online > 1) return -EINVAL; + if (online && (!aq->config || !aq->card->config)) + return -ENODEV; if (online && !zc->online) return -EINVAL; zq->online = online; |