diff options
Diffstat (limited to 'drivers/misc/mei/bus.c')
| -rw-r--r-- | drivers/misc/mei/bus.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index 873c1b6e45e8..00b0cb2075fb 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -436,6 +436,12 @@ int mei_cl_enable_device(struct mei_cl_device *device) mutex_lock(&dev->device_lock); + if (mei_cl_is_connected(cl)) { + mutex_unlock(&dev->device_lock); + dev_warn(dev->dev, "Already connected"); + return -EBUSY; + } + err = mei_cl_connect(cl, NULL); if (err < 0) { mutex_unlock(&dev->device_lock); |
