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USB: Dealias -110 code (more complete)

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The purpose of this patch is to split off the case when a device does
not reply on the lower level (which is reported by HC hardware), and
a case when the device accepted the request, but does not reply at
upper level. This redefinition allows to diagnose issues easier,
without asking the user if the -110 happened "immediately".

The usbmon splits such cases already thanks to its timestamp, but
it's not always available.

I adjusted all drivers which I found affected (by searching for "urb").
Out of tree drivers may suffer a little bit, but I do not expect much
breakage. At worst they may print a few messages.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Pete Zaitcev
2006-09-18 22:49:02 -07:00
committed by Greg Kroah-Hartman
parent ec17cf1cfe
commit 38e2bfc94e
24 changed files with 48 additions and 60 deletions
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5
drivers/usb/storage/transport.c
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@@ -294,11 +294,6 @@ static int interpret_urb_result(struct us_data *us, unsigned int pipe,
return USB_STOR_XFER_ERROR;
return USB_STOR_XFER_STALLED;
/* timeout or excessively long NAK */
case -ETIMEDOUT:
US_DEBUGP("-- timeout or NAK\n");
return USB_STOR_XFER_ERROR;
/* babble - the device tried to send more than we wanted to read */
case -EOVERFLOW:
US_DEBUGP("-- babble\n");