path: root/drivers/usb/core/hub.c
diff options
authorAlan Stern <stern@rowland.harvard.edu>2010-03-04 17:05:08 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2010-05-20 13:21:31 -0700
commit749da5f82fe33ff68dd4aa1a5e35cd9aa6246dab (patch)
tree2c0a7c689ab6a58f3a799ae51e41ac885e212194 /drivers/usb/core/hub.c
parent288ead45fa6637e959015d055304f521cbbc0575 (diff)
USB: straighten out port feature vs. port status usage
This patch (as1349b) clears up the confusion in many USB host controller drivers between port features and port statuses. In mosty cases it's true that the status bit is in the position given by the corresponding feature value, but that's not always true and it's not guaranteed in the USB spec. There's no functional change, just replacing expressions of the form (1 << USB_PORT_FEAT_x) with USB_PORT_STAT_x, which has the same value. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/hub.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 5ac27ed0c63..497dbb29744 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -3037,7 +3037,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
/* maybe switch power back on (e.g. root hub was reset) */
if ((wHubCharacteristics & HUB_CHAR_LPSM) < 2
- && !(portstatus & (1 << USB_PORT_FEAT_POWER)))
+ && !(portstatus & USB_PORT_STAT_POWER))
set_port_feature(hdev, port1, USB_PORT_FEAT_POWER);
if (portstatus & USB_PORT_STAT_ENABLE)