USB: avoid error messages when a device is disconnected
This patch (as1673) reduces the amount of log spew from the hub driver
by removing a bunch of error messages in the case where the device in
question is already known to have been disconnected. Since the
disconnect event itself appears in the log, there's no need for other
error messages.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Jenya Y <jy.gerstmaier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c
index 271e761..acbfeb0 100644
--- a/drivers/usb/core/generic.c
+++ b/drivers/usb/core/generic.c
@@ -169,7 +169,7 @@
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