diff options
Diffstat (limited to 'drivers/misc')
-rw-r--r-- | drivers/misc/mei/client.c | 8 | ||||
-rw-r--r-- | drivers/misc/mei/main.c | 31 |
2 files changed, 21 insertions, 18 deletions
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index fbd319c506e6..88770e040dd1 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -288,7 +288,13 @@ int mei_cl_link(struct mei_cl *cl, int id) if (id >= MEI_CLIENTS_MAX) { dev_err(&dev->pdev->dev, "id exceded %d", MEI_CLIENTS_MAX) ; - return -ENOENT; + return -EMFILE; + } + + if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) { + dev_err(&dev->pdev->dev, "open_handle_count exceded %d", + MEI_MAX_OPEN_HANDLE_COUNT); + return -EMFILE; } if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) { diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index c71420ef1e37..87ab5ca1d633 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -60,48 +60,45 @@ static int mei_open(struct inode *inode, struct file *file) int err; - err = -ENODEV; if (!misc->parent) - goto out; + return -ENODEV; pdev = container_of(misc->parent, struct pci_dev, dev); dev = pci_get_drvdata(pdev); if (!dev) - goto out; + return -ENODEV; mutex_lock(&dev->device_lock); - err = -ENOMEM; - cl = mei_cl_allocate(dev); - if (!cl) - goto out_unlock; + + cl = NULL; err = -ENODEV; if (dev->dev_state != MEI_DEV_ENABLED) { dev_dbg(&dev->pdev->dev, "dev_state != MEI_ENABLED dev_state = %s\n", mei_dev_state_str(dev->dev_state)); - goto out_unlock; - } - err = -EMFILE; - if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) { - dev_err(&dev->pdev->dev, "open_handle_count exceded %d", - MEI_MAX_OPEN_HANDLE_COUNT); - goto out_unlock; + goto err_unlock; } + err = -ENOMEM; + cl = mei_cl_allocate(dev); + if (!cl) + goto err_unlock; + + /* open_handle_count check is handled in the mei_cl_link */ err = mei_cl_link(cl, MEI_HOST_CLIENT_ID_ANY); if (err) - goto out_unlock; + goto err_unlock; file->private_data = cl; + mutex_unlock(&dev->device_lock); return nonseekable_open(inode, file); -out_unlock: +err_unlock: mutex_unlock(&dev->device_lock); kfree(cl); -out: return err; } |