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-rw-r--r--drivers/usb/core/generic.c2
-rw-r--r--drivers/usb/core/hub.c65
2 files changed, 37 insertions, 30 deletions
diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c
index 271e761f563e..acbfeb0a0119 100644
--- a/drivers/usb/core/generic.c
+++ b/drivers/usb/core/generic.c
@@ -169,7 +169,7 @@ static int generic_probe(struct usb_device *udev)
c = usb_choose_configuration(udev);
if (c >= 0) {
err = usb_set_configuration(udev, c);
- if (err) {
+ if (err && err != -ENODEV) {
dev_err(&udev->dev, "can't set config #%d, error %d\n",
c, err);
/* This need not be fatal. The user can try to
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 781546269d26..669da9ef714d 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -555,8 +555,9 @@ static int hub_port_status(struct usb_hub *hub, int port1,
mutex_lock(&hub->status_mutex);
ret = get_port_status(hub->hdev, port1, &hub->status->port);
if (ret < 4) {
- dev_err(hub->intfdev,
- "%s failed (err = %d)\n", __func__, ret);
+ if (ret != -ENODEV)
+ dev_err(hub->intfdev,
+ "%s failed (err = %d)\n", __func__, ret);
if (ret >= 0)
ret = -EIO;
} else {
@@ -699,7 +700,7 @@ static void hub_tt_work(struct work_struct *work)
/* drop lock so HCD can concurrently report other TT errors */
spin_unlock_irqrestore (&hub->tt.lock, flags);
status = hub_clear_tt_buffer (hdev, clear->devinfo, clear->tt);
- if (status)
+ if (status && status != -ENODEV)
dev_err (&hdev->dev,
"clear tt %d (%04x) error %d\n",
clear->tt, clear->devinfo, status);
@@ -837,10 +838,11 @@ static int hub_hub_status(struct usb_hub *hub,
mutex_lock(&hub->status_mutex);
ret = get_hub_status(hub->hdev, &hub->status->hub);
- if (ret < 0)
- dev_err (hub->intfdev,
- "%s failed (err = %d)\n", __func__, ret);
- else {
+ if (ret < 0) {
+ if (ret != -ENODEV)
+ dev_err(hub->intfdev,
+ "%s failed (err = %d)\n", __func__, ret);
+ } else {
*status = le16_to_cpu(hub->status->hub.wHubStatus);
*change = le16_to_cpu(hub->status->hub.wHubChange);
ret = 0;
@@ -877,11 +879,8 @@ static int hub_usb3_port_disable(struct usb_hub *hub, int port1)
return -EINVAL;
ret = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_SS_DISABLED);
- if (ret) {
- dev_err(hub->intfdev, "cannot disable port %d (err = %d)\n",
- port1, ret);
+ if (ret)
return ret;
- }
/* Wait for the link to enter the disabled state. */
for (total_time = 0; ; total_time += HUB_DEBOUNCE_STEP) {
@@ -918,7 +917,7 @@ static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
ret = usb_clear_port_feature(hdev, port1,
USB_PORT_FEAT_ENABLE);
}
- if (ret)
+ if (ret && ret != -ENODEV)
dev_err(hub->intfdev, "cannot disable port %d (err = %d)\n",
port1, ret);
return ret;
@@ -2196,8 +2195,9 @@ static int usb_enumerate_device(struct usb_device *udev)
if (udev->config == NULL) {
err = usb_get_configuration(udev);
if (err < 0) {
- dev_err(&udev->dev, "can't read configurations, error %d\n",
- err);
+ if (err != -ENODEV)
+ dev_err(&udev->dev, "can't read configurations, error %d\n",
+ err);
return err;
}
}
@@ -2644,14 +2644,16 @@ static int hub_port_reset(struct usb_hub *hub, int port1,
status = set_port_feature(hub->hdev, port1, (warm ?
USB_PORT_FEAT_BH_PORT_RESET :
USB_PORT_FEAT_RESET));
- if (status) {
+ if (status == -ENODEV) {
+ ; /* The hub is gone */
+ } else if (status) {
dev_err(hub->intfdev,
"cannot %sreset port %d (err = %d)\n",
warm ? "warm " : "", port1, status);
} else {
status = hub_port_wait_reset(hub, port1, udev, delay,
warm);
- if (status && status != -ENOTCONN)
+ if (status && status != -ENOTCONN && status != -ENODEV)
dev_dbg(hub->intfdev,
"port_wait_reset: err = %d\n",
status);
@@ -4094,9 +4096,9 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
goto fail;
}
if (r) {
- dev_err(&udev->dev,
- "device descriptor read/64, error %d\n",
- r);
+ if (r != -ENODEV)
+ dev_err(&udev->dev, "device descriptor read/64, error %d\n",
+ r);
retval = -EMSGSIZE;
continue;
}
@@ -4116,9 +4118,9 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
msleep(200);
}
if (retval < 0) {
- dev_err(&udev->dev,
- "device not accepting address %d, error %d\n",
- devnum, retval);
+ if (retval != -ENODEV)
+ dev_err(&udev->dev, "device not accepting address %d, error %d\n",
+ devnum, retval);
goto fail;
}
if (udev->speed == USB_SPEED_SUPER) {
@@ -4140,7 +4142,8 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
retval = usb_get_device_descriptor(udev, 8);
if (retval < 8) {
- dev_err(&udev->dev,
+ if (retval != -ENODEV)
+ dev_err(&udev->dev,
"device descriptor read/8, error %d\n",
retval);
if (retval >= 0)
@@ -4194,8 +4197,9 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
retval = usb_get_device_descriptor(udev, USB_DT_DEVICE_SIZE);
if (retval < (signed)sizeof(udev->descriptor)) {
- dev_err(&udev->dev, "device descriptor read/all, error %d\n",
- retval);
+ if (retval != -ENODEV)
+ dev_err(&udev->dev, "device descriptor read/all, error %d\n",
+ retval);
if (retval >= 0)
retval = -ENOMSG;
goto fail;
@@ -4377,7 +4381,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
USB_PORT_STAT_C_ENABLE)) {
status = hub_port_debounce_be_stable(hub, port1);
if (status < 0) {
- if (printk_ratelimit())
+ if (status != -ENODEV && printk_ratelimit())
dev_err(hub_dev, "connect-debounce failed, "
"port %d disabled\n", port1);
portstatus &= ~USB_PORT_STAT_CONNECTION;
@@ -4406,6 +4410,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
else
unit_load = 100;
+ status = 0;
for (i = 0; i < SET_CONFIG_TRIES; i++) {
/* reallocate for each attempt, since references
@@ -4530,9 +4535,11 @@ loop:
}
if (hub->hdev->parent ||
!hcd->driver->port_handed_over ||
- !(hcd->driver->port_handed_over)(hcd, port1))
- dev_err(hub_dev, "unable to enumerate USB device on port %d\n",
- port1);
+ !(hcd->driver->port_handed_over)(hcd, port1)) {
+ if (status != -ENOTCONN && status != -ENODEV)
+ dev_err(hub_dev, "unable to enumerate USB device on port %d\n",
+ port1);
+ }
done:
hub_port_disable(hub, port1, 1);
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