diff options
Diffstat (limited to 'drivers/misc/mei/bus.c')
| -rw-r--r-- | drivers/misc/mei/bus.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index 4cf38c39878a..883ba74fbc1e 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -238,6 +238,11 @@ static ssize_t ___mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length, dev = cl->dev; mutex_lock(&dev->device_lock); + if (dev->dev_state != MEI_DEV_ENABLED) { + rets = -ENODEV; + goto out; + } + if (!mei_cl_is_connected(cl)) { rets = -ENODEV; goto out; @@ -287,6 +292,10 @@ ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length) dev = cl->dev; mutex_lock(&dev->device_lock); + if (dev->dev_state != MEI_DEV_ENABLED) { + rets = -ENODEV; + goto out; + } cb = mei_cl_read_cb(cl, NULL); if (cb) |