diff options
Diffstat (limited to 'drivers/misc/mei/bus.c')
| -rw-r--r-- | drivers/misc/mei/bus.c | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index 6d0282c08a0..0e993ef28b9 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -26,7 +26,6 @@ #include <linux/mei_cl_bus.h> #include "mei_dev.h" -#include "hw-me.h" #include "client.h" #define to_mei_cl_driver(d) container_of(d, struct mei_cl_driver, driver) @@ -145,9 +144,9 @@ static struct device_type mei_cl_device_type = { static struct mei_cl *mei_bus_find_mei_cl_by_uuid(struct mei_device *dev, uuid_le uuid) { - struct mei_cl *cl, *next; + struct mei_cl *cl; - list_for_each_entry_safe(cl, next, &dev->device_list, device_link) { + list_for_each_entry(cl, &dev->device_list, device_link) { if (!uuid_le_cmp(uuid, cl->device_uuid)) return cl; } @@ -245,10 +244,10 @@ static int ___mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length, /* Check if we have an ME client device */ id = mei_me_cl_by_id(dev, cl->me_client_id); if (id < 0) - return -ENODEV; + return id; if (length > dev->me_clients[id].props.max_msg_length) - return -EINVAL; + return -EFBIG; cb = mei_io_cb_init(cl, NULL); if (!cb) @@ -297,10 +296,13 @@ int __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length) if (cl->reading_state != MEI_READ_COMPLETE && !waitqueue_active(&cl->rx_wait)) { + mutex_unlock(&dev->device_lock); if (wait_event_interruptible(cl->rx_wait, - (MEI_READ_COMPLETE == cl->reading_state))) { + cl->reading_state == MEI_READ_COMPLETE || + mei_cl_is_transitioning(cl))) { + if (signal_pending(current)) return -EINTR; return -ERESTARTSYS; @@ -425,8 +427,6 @@ int mei_cl_enable_device(struct mei_cl_device *device) mutex_lock(&dev->device_lock); - cl->state = MEI_FILE_CONNECTING; - err = mei_cl_connect(cl, NULL); if (err < 0) { mutex_unlock(&dev->device_lock); @@ -521,6 +521,22 @@ void mei_cl_bus_rx_event(struct mei_cl *cl) schedule_work(&device->event_work); } +void mei_cl_bus_remove_devices(struct mei_device *dev) +{ + struct mei_cl *cl, *next; + + mutex_lock(&dev->device_lock); + list_for_each_entry_safe(cl, next, &dev->device_list, device_link) { + if (cl->device) + mei_cl_remove_device(cl->device); + + list_del(&cl->device_link); + mei_cl_unlink(cl); + kfree(cl); + } + mutex_unlock(&dev->device_lock); +} + int __init mei_cl_bus_init(void) { return bus_register(&mei_cl_bus_type); |