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tcmu: add helper to check if dev was configured 

This adds a helper to check if the dev was configured. It
will be used in the next patch to prevent updates to some
config settings after the device has been setup.

Signed-off-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Mike Christie 2017-03-09 02:42:08 -06:00 committed by Nicholas Bellinger
parent 760bf578ed
commit 972c7f1679
1 changed files with 6 additions and 2 deletions
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8
drivers/target/target_core_user.c
View File

@ -998,6 +998,11 @@ static void tcmu_dev_call_rcu(struct rcu_head *p)
kfree(udev);
}
static bool tcmu_dev_configured(struct tcmu_dev *udev)
{
return udev->uio_info.uio_dev ? true : false;
}
static void tcmu_free_device(struct se_device *dev)
{
struct tcmu_dev *udev = TCMU_DEV(dev);
@ -1019,8 +1024,7 @@ static void tcmu_free_device(struct se_device *dev)
spin_unlock_irq(&udev->commands_lock);
WARN_ON(!all_expired);
/* Device was configured */
if (udev->uio_info.uio_dev) {
if (tcmu_dev_configured(udev)) {
tcmu_netlink_event(TCMU_CMD_REMOVED_DEVICE, udev->uio_info.name,
udev->uio_info.uio_dev->minor);