# This is a BitKeeper generated patch for the following project:
# Project Name: Linux kernel tree
# This patch format is intended for GNU patch command version 2.5 or higher.
# This patch includes the following deltas:
# ChangeSet 1.544 -> 1.545
# drivers/usb/core/usb.c 1.51 -> 1.52
#
# The following is the BitKeeper ChangeSet Log
# --------------------------------------------
# 02/05/13 [EMAIL PROTECTED] 1.545
# [PATCH] usb_submit_urb fix for broken usb devices
#
# added check for wMaxPacketSize of 0, which is a messed up device, but
# seems to be legal according to the USB spec.
#
# Thanks to Johannes for figuring out the problem, and providing an
# original version of this patch.
# --------------------------------------------
#
diff -Nru a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
--- a/drivers/usb/core/usb.c Mon May 13 15:53:51 2002
+++ b/drivers/usb/core/usb.c Mon May 13 15:53:51 2002
@@ -1162,10 +1162,15 @@
*/
int usb_submit_urb(struct urb *urb, int mem_flags)
{
- if (urb && urb->dev && urb->dev->bus && urb->dev->bus->op)
+
+ if (urb && urb->dev && urb->dev->bus && urb->dev->bus->op) {
+ if (usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)) <= 0) {
+ err("%s: pipe %x has invalid size (<= 0)", __FUNCTION__,
+urb->pipe);
+ return -EMSGSIZE;
+ }
return urb->dev->bus->op->submit_urb(urb, mem_flags);
- else
- return -ENODEV;
+ }
+ return -ENODEV;
}
/*-------------------------------------------------------------------*/
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