diff options
Diffstat (limited to 'drivers/misc/mei/client.c')
| -rw-r--r-- | drivers/misc/mei/client.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index 2b0f99955ba6..753608185b77 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -664,7 +664,7 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length) i = mei_me_cl_by_id(dev, cl->me_client_id); if (i < 0) { cl_err(dev, cl, "no such me client %d\n", cl->me_client_id); - return -ENODEV; + return -ENOTTY; } cb = mei_io_cb_init(cl, NULL); @@ -852,13 +852,12 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking) cl->writing_state = MEI_WRITING; cb->buf_idx = mei_hdr.length; - rets = buf->size; out: if (mei_hdr.msg_complete) { - if (mei_cl_flow_ctrl_reduce(cl)) { - rets = -ENODEV; + rets = mei_cl_flow_ctrl_reduce(cl); + if (rets < 0) goto err; - } + list_add_tail(&cb->list, &dev->write_waiting_list.list); } else { list_add_tail(&cb->list, &dev->write_list.list); @@ -868,15 +867,18 @@ out: if (blocking && cl->writing_state != MEI_WRITE_COMPLETE) { mutex_unlock(&dev->device_lock); - if (wait_event_interruptible(cl->tx_wait, - cl->writing_state == MEI_WRITE_COMPLETE)) { - if (signal_pending(current)) - rets = -EINTR; - else - rets = -ERESTARTSYS; - } + rets = wait_event_interruptible(cl->tx_wait, + cl->writing_state == MEI_WRITE_COMPLETE); mutex_lock(&dev->device_lock); + /* wait_event_interruptible returns -ERESTARTSYS */ + if (rets) { + if (signal_pending(current)) + rets = -EINTR; + goto err; + } } + + rets = buf->size; err: return rets; } |