diff options
| author | Paul Durrant <paul.durrant@citrix.com> | 2017-02-13 18:03:22 +0100 |
|---|---|---|
| committer | Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2017-02-13 19:49:00 +0100 |
| commit | dc9eab6fd94dd26340749321bba2c58634761516 (patch) | |
| tree | f8c05ab25635c57dc168172b4307f7ae0bab7fe9 /drivers/xen/privcmd.c | |
| parent | xen: optimize xenbus driver for multiple concurrent xenstore accesses (diff) | |
| download | linux-dc9eab6fd94dd26340749321bba2c58634761516.tar.xz linux-dc9eab6fd94dd26340749321bba2c58634761516.zip | |
xen/privcmd: return -ENOTTY for unimplemented IOCTLs
The code sets the default return code to -ENOSYS but then overrides this
to -EINVAL in the switch() statement's default case, which is clearly
silly.
This patch removes the override and sets the default return code to
-ENOTTY, which is the conventional return for an unimplemented ioctl.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'drivers/xen/privcmd.c')
| -rw-r--r-- | drivers/xen/privcmd.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c index 6e3306f4a525..5e5c7aef0c9f 100644 --- a/drivers/xen/privcmd.c +++ b/drivers/xen/privcmd.c @@ -551,7 +551,7 @@ out_unlock: static long privcmd_ioctl(struct file *file, unsigned int cmd, unsigned long data) { - int ret = -ENOSYS; + int ret = -ENOTTY; void __user *udata = (void __user *) data; switch (cmd) { @@ -572,7 +572,6 @@ static long privcmd_ioctl(struct file *file, break; default: - ret = -EINVAL; break; } |