diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2013-07-30 15:35:40 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-31 17:29:02 -0700 |
| commit | 15b7336e02d998720c5ace47036f7e539365bb05 (patch) | |
| tree | db90ccb73d4b50fdfab0c3a93144b9d803622c46 /drivers/usb/core/hub.c | |
| parent | b977a3068a284b2ad4612cdb8ca326cbd2a7ffc9 (diff) | |
USB: simplify the interface of usb_get_status()
This patch simplifies the interface presented by usb_get_status().
Instead of forcing callers to check for the proper data length and
convert the status value to host byte order, the function will now
do these things itself.
Signed-off-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 | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index c881830af55..11a92198bfc 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1464,11 +1464,10 @@ static int hub_configure(struct usb_hub *hub, * and battery-powered root hubs (may provide just 8 mA). */ ret = usb_get_status(hdev, USB_RECIP_DEVICE, 0, &hubstatus); - if (ret < 2) { + if (ret) { message = "can't get hub status"; goto fail; } - le16_to_cpus(&hubstatus); hcd = bus_to_hcd(hdev->bus); if (hdev == hdev->bus->root_hub) { if (hcd->power_budget > 0) @@ -3101,8 +3100,6 @@ static int finish_port_resume(struct usb_device *udev) if (status == 0) { devstatus = 0; status = usb_get_status(udev, USB_RECIP_DEVICE, 0, &devstatus); - if (status >= 0) - status = (status > 0 ? 0 : -ENODEV); /* If a normal resume failed, try doing a reset-resume */ if (status && !udev->reset_resume && udev->persist_enabled) { @@ -3123,7 +3120,6 @@ static int finish_port_resume(struct usb_device *udev) */ } else if (udev->actconfig && !udev->reset_resume) { if (!hub_is_superspeed(udev->parent)) { - le16_to_cpus(&devstatus); if (devstatus & (1 << USB_DEVICE_REMOTE_WAKEUP)) status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), @@ -3135,7 +3131,6 @@ static int finish_port_resume(struct usb_device *udev) } else { status = usb_get_status(udev, USB_RECIP_INTERFACE, 0, &devstatus); - le16_to_cpus(&devstatus); if (!status && devstatus & (USB_INTRF_STAT_FUNC_RW_CAP | USB_INTRF_STAT_FUNC_RW)) status = @@ -4481,11 +4476,10 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, status = usb_get_status(udev, USB_RECIP_DEVICE, 0, &devstat); - if (status < 2) { + if (status) { dev_dbg(&udev->dev, "get status %d ?\n", status); goto loop_disable; } - le16_to_cpus(&devstat); if ((devstat & (1 << USB_DEVICE_SELF_POWERED)) == 0) { dev_err(&udev->dev, "can't connect bus-powered hub " |