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| author | Tomas Winkler <tomas.winkler@intel.com> | 2014-08-21 14:29:22 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-23 22:57:48 -0700 |
| commit | 4f046e7b6f4f0d8c9504e22cf8eacfe5c78f0f01 (patch) | |
| tree | 9dc8d85bb2b3cfbf6f64dc710cfcbdf161c5e934 /drivers/misc/mei | |
| parent | bae1cc7d41fd3048f55c21a6e59c35a3f0abaafe (diff) | |
| download | linux-stable-4f046e7b6f4f0d8c9504e22cf8eacfe5c78f0f01.tar.gz linux-stable-4f046e7b6f4f0d8c9504e22cf8eacfe5c78f0f01.tar.bz2 linux-stable-4f046e7b6f4f0d8c9504e22cf8eacfe5c78f0f01.zip | |
mei: enable adding more IOCTL handlers
Handle ioctls in a switch statement so we can
add more commands easily
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei')
| -rw-r--r-- | drivers/misc/mei/main.c | 53 |
1 files changed, 28 insertions, 25 deletions
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index 957f44aaa97a..2f80c77629b0 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -523,8 +523,6 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data) struct mei_connect_client_data *connect_data = NULL; int rets; - if (cmd != IOCTL_MEI_CONNECT_CLIENT) - return -EINVAL; if (WARN_ON(!cl || !cl->dev)) return -ENODEV; @@ -539,34 +537,39 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data) goto out; } - dev_dbg(&dev->pdev->dev, ": IOCTL_MEI_CONNECT_CLIENT.\n"); - - connect_data = kzalloc(sizeof(struct mei_connect_client_data), + switch (cmd) { + case IOCTL_MEI_CONNECT_CLIENT: + dev_dbg(&dev->pdev->dev, ": IOCTL_MEI_CONNECT_CLIENT.\n"); + connect_data = kzalloc(sizeof(struct mei_connect_client_data), GFP_KERNEL); - if (!connect_data) { - rets = -ENOMEM; - goto out; - } - dev_dbg(&dev->pdev->dev, "copy connect data from user\n"); - if (copy_from_user(connect_data, (char __user *)data, - sizeof(struct mei_connect_client_data))) { - dev_dbg(&dev->pdev->dev, "failed to copy data from userland\n"); - rets = -EFAULT; - goto out; - } + if (!connect_data) { + rets = -ENOMEM; + goto out; + } - rets = mei_ioctl_connect_client(file, connect_data); + if (copy_from_user(connect_data, (char __user *)data, + sizeof(struct mei_connect_client_data))) { + dev_dbg(&dev->pdev->dev, "failed to copy data from userland\n"); + rets = -EFAULT; + goto out; + } - /* if all is ok, copying the data back to user. */ - if (rets) - goto out; + rets = mei_ioctl_connect_client(file, connect_data); + if (rets) + goto out; - dev_dbg(&dev->pdev->dev, "copy connect data to user\n"); - if (copy_to_user((char __user *)data, connect_data, + /* if all is ok, copying the data back to user. */ + if (copy_to_user((char __user *)data, connect_data, sizeof(struct mei_connect_client_data))) { - dev_dbg(&dev->pdev->dev, "failed to copy data to userland\n"); - rets = -EFAULT; - goto out; + dev_dbg(&dev->pdev->dev, "failed to copy data to userland\n"); + rets = -EFAULT; + goto out; + } + + break; + default: + dev_err(&dev->pdev->dev, ": unsupported ioctl %d.\n", cmd); + rets = -ENOIOCTLCMD; } out: |