diff options
Diffstat (limited to 'drivers/hv/vmbus_drv.c')
| -rw-r--r-- | drivers/hv/vmbus_drv.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index b23aea86d029..6aa79b6a6750 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -1435,9 +1435,6 @@ static ssize_t vmbus_chan_attr_show(struct kobject *kobj, if (!attribute->show) return -EIO; - if (chan->state != CHANNEL_OPENED_STATE) - return -EINVAL; - return attribute->show(chan, buf); } @@ -1449,6 +1446,9 @@ static ssize_t out_mask_show(const struct vmbus_channel *channel, char *buf) { const struct hv_ring_buffer_info *rbi = &channel->outbound; + if (!rbi->ring_buffer) + return -EINVAL; + return sprintf(buf, "%u\n", rbi->ring_buffer->interrupt_mask); } static VMBUS_CHAN_ATTR_RO(out_mask); @@ -1457,6 +1457,9 @@ static ssize_t in_mask_show(const struct vmbus_channel *channel, char *buf) { const struct hv_ring_buffer_info *rbi = &channel->inbound; + if (!rbi->ring_buffer) + return -EINVAL; + return sprintf(buf, "%u\n", rbi->ring_buffer->interrupt_mask); } static VMBUS_CHAN_ATTR_RO(in_mask); @@ -1465,6 +1468,9 @@ static ssize_t read_avail_show(const struct vmbus_channel *channel, char *buf) { const struct hv_ring_buffer_info *rbi = &channel->inbound; + if (!rbi->ring_buffer) + return -EINVAL; + return sprintf(buf, "%u\n", hv_get_bytes_to_read(rbi)); } static VMBUS_CHAN_ATTR_RO(read_avail); @@ -1473,6 +1479,9 @@ static ssize_t write_avail_show(const struct vmbus_channel *channel, char *buf) { const struct hv_ring_buffer_info *rbi = &channel->outbound; + if (!rbi->ring_buffer) + return -EINVAL; + return sprintf(buf, "%u\n", hv_get_bytes_to_write(rbi)); } static VMBUS_CHAN_ATTR_RO(write_avail); |