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| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2013-06-18 14:28:48 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-18 18:02:04 (GMT) |
| commit | 41341261aa1707b49f937ba2c20d1a0daa5afac3 (patch) | |
| tree | 7f7e80ab0396c7b0381013461d94ef9af852168a /drivers/usb/core/hub.h | |
| parent | 025f880cb2e4d7218d0422d4b07bea1a68959c38 (diff) | |
| download | linux-41341261aa1707b49f937ba2c20d1a0daa5afac3.tar.xz | |
usb: check usb_hub_to_struct_hub() return value
usb_hub_to_struct_hub() can return NULL in some unlikely cases.
Add checks where appropriate, or pass the hub pointer as an additional
argument if it's known to be valid.
The places it makes sense to check usb_hub_to_struct_hub()
are picked based on feedback from Alan Stern.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.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.h')
| -rw-r--r-- | drivers/usb/core/hub.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h index 80ab9ee..6508e02 100644 --- a/drivers/usb/core/hub.h +++ b/drivers/usb/core/hub.h @@ -100,7 +100,7 @@ extern int usb_hub_create_port_device(struct usb_hub *hub, int port1); extern void usb_hub_remove_port_device(struct usb_hub *hub, int port1); -extern int usb_hub_set_port_power(struct usb_device *hdev, +extern int usb_hub_set_port_power(struct usb_device *hdev, struct usb_hub *hub, int port1, bool set); extern struct usb_hub *usb_hub_to_struct_hub(struct usb_device *hdev); extern int hub_port_debounce(struct usb_hub *hub, int port1, |