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path: root/drivers/usb/core/hub.c
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Diffstat (limited to 'drivers/usb/core/hub.c')
-rw-r--r--drivers/usb/core/hub.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index b4688fa..be9cac6 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2050,7 +2050,7 @@ static unsigned hub_is_wusb(struct usb_hub *hub)
#define HUB_ROOT_RESET_TIME 50 /* times are in msec */
#define HUB_SHORT_RESET_TIME 10
#define HUB_LONG_RESET_TIME 200
-#define HUB_RESET_TIMEOUT 500
+#define HUB_RESET_TIMEOUT 800
static int hub_port_wait_reset(struct usb_hub *hub, int port1,
struct usb_device *udev, unsigned int delay)
@@ -2413,7 +2413,7 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
static int finish_port_resume(struct usb_device *udev)
{
int status = 0;
- u16 devstatus;
+ u16 devstatus = 0;
/* caller owns the udev device lock */
dev_dbg(&udev->dev, "%s\n",
@@ -2458,7 +2458,13 @@ static int finish_port_resume(struct usb_device *udev)
if (status) {
dev_dbg(&udev->dev, "gone after usb resume? status %d\n",
status);
- } else if (udev->actconfig) {
+ /*
+ * There are a few quirky devices which violate the standard
+ * by claiming to have remote wakeup enabled after a reset,
+ * which crash if the feature is cleared, hence check for
+ * udev->reset_resume
+ */
+ } else if (udev->actconfig && !udev->reset_resume) {
le16_to_cpus(&devstatus);
if (devstatus & (1 << USB_DEVICE_REMOTE_WAKEUP)) {
status = usb_control_msg(udev,