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| author | Valentina Manea <valentina.manea.m@gmail.com> | 2014-03-08 14:53:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-08 22:48:43 -0800 |
| commit | 6080cd0e9239469524d2aa07250ad4b9f383960d (patch) | |
| tree | 0682e223b8d1345188251e6dd6b05fc1fb4f63c6 /drivers/usb/core/hub.c | |
| parent | a46034ca57ed6bdbb574a46ca3453061946b62f9 (diff) | |
| download | op-kernel-dev-6080cd0e9239469524d2aa07250ad4b9f383960d.zip op-kernel-dev-6080cd0e9239469524d2aa07250ad4b9f383960d.tar.gz | |
staging: usbip: claim ports used by shared devices
A device should not be able to be used concurrently both by
the server and the client. Claiming the port used by the
shared device ensures no interface drivers bind to it and
that it is not usable from the server.
Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core/hub.c')
| -rw-r--r-- | drivers/usb/core/hub.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 64ea219..e484933 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1819,6 +1819,7 @@ int usb_hub_claim_port(struct usb_device *hdev, unsigned port1, *powner = owner; return rc; } +EXPORT_SYMBOL_GPL(usb_hub_claim_port); int usb_hub_release_port(struct usb_device *hdev, unsigned port1, struct dev_state *owner) @@ -1834,6 +1835,7 @@ int usb_hub_release_port(struct usb_device *hdev, unsigned port1, *powner = NULL; return rc; } +EXPORT_SYMBOL_GPL(usb_hub_release_port); void usb_hub_release_all_ports(struct usb_device *hdev, struct dev_state *owner) { |
