diff options
author | Lan Tianyu <tianyu.lan@intel.com> | 2012-07-06 06:13:52 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-06 18:09:28 (GMT) |
commit | 336c5c310e8f0d5baba7973765339eaf5d989fe1 (patch) | |
tree | 74350a57c77560a460feb5ede8978fb9e1246e9c /drivers/usb/core | |
parent | 77c4400f2f0fd8384ab5cbe41d81ccc664896b2d (diff) | |
download | linux-336c5c310e8f0d5baba7973765339eaf5d989fe1.tar.xz |
usb: convert port_owners type from void * to struct dev_state *
This patch is to convert port_owners type from void * to struct dev_state *
in order to make code more readable.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core')
-rw-r--r-- | drivers/usb/core/hub.c | 21 | ||||
-rw-r--r-- | drivers/usb/core/usb.h | 9 |
2 files changed, 18 insertions, 12 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 25a7422..4cc8dc9 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -81,7 +81,7 @@ struct usb_hub { u8 indicator[USB_MAXCHILDREN]; struct delayed_work leds; struct delayed_work init_work; - void **port_owners; + struct dev_state **port_owners; }; static inline int hub_is_superspeed(struct usb_device *hdev) @@ -1271,7 +1271,8 @@ static int hub_configure(struct usb_hub *hub, hdev->children = kzalloc(hdev->maxchild * sizeof(struct usb_device *), GFP_KERNEL); - hub->port_owners = kzalloc(hdev->maxchild * sizeof(void *), GFP_KERNEL); + hub->port_owners = kzalloc(hdev->maxchild * sizeof(struct dev_state *), + GFP_KERNEL); if (!hdev->children || !hub->port_owners) { ret = -ENOMEM; goto fail; @@ -1649,7 +1650,7 @@ hub_ioctl(struct usb_interface *intf, unsigned int code, void *user_data) * to one of these "claimed" ports, the program will "own" the device. */ static int find_port_owner(struct usb_device *hdev, unsigned port1, - void ***ppowner) + struct dev_state ***ppowner) { if (hdev->state == USB_STATE_NOTATTACHED) return -ENODEV; @@ -1664,10 +1665,11 @@ static int find_port_owner(struct usb_device *hdev, unsigned port1, } /* In the following three functions, the caller must hold hdev's lock */ -int usb_hub_claim_port(struct usb_device *hdev, unsigned port1, void *owner) +int usb_hub_claim_port(struct usb_device *hdev, unsigned port1, + struct dev_state *owner) { int rc; - void **powner; + struct dev_state **powner; rc = find_port_owner(hdev, port1, &powner); if (rc) @@ -1678,10 +1680,11 @@ int usb_hub_claim_port(struct usb_device *hdev, unsigned port1, void *owner) return rc; } -int usb_hub_release_port(struct usb_device *hdev, unsigned port1, void *owner) +int usb_hub_release_port(struct usb_device *hdev, unsigned port1, + struct dev_state *owner) { int rc; - void **powner; + struct dev_state **powner; rc = find_port_owner(hdev, port1, &powner); if (rc) @@ -1692,10 +1695,10 @@ int usb_hub_release_port(struct usb_device *hdev, unsigned port1, void *owner) return rc; } -void usb_hub_release_all_ports(struct usb_device *hdev, void *owner) +void usb_hub_release_all_ports(struct usb_device *hdev, struct dev_state *owner) { int n; - void **powner; + struct dev_state **powner; n = find_port_owner(hdev, 1, &powner); if (n == 0) { diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index 5c5c538..67875a8 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -1,5 +1,7 @@ #include <linux/pm.h> +struct dev_state; + /* Functions local to drivers/usb/core/ */ extern int usb_create_sysfs_dev_files(struct usb_device *dev); @@ -41,10 +43,11 @@ extern void usb_forced_unbind_intf(struct usb_interface *intf); extern void usb_rebind_intf(struct usb_interface *intf); extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port, - void *owner); + struct dev_state *owner); extern int usb_hub_release_port(struct usb_device *hdev, unsigned port, - void *owner); -extern void usb_hub_release_all_ports(struct usb_device *hdev, void *owner); + struct dev_state *owner); +extern void usb_hub_release_all_ports(struct usb_device *hdev, + struct dev_state *owner); extern bool usb_device_is_owned(struct usb_device *udev); extern int usb_hub_init(void); |