USB: EHCI: No SSPLIT allowed in uframe 7
authorAlan Stern <stern@rowland.harvard.edu>
Fri, 11 Oct 2013 15:28:31 +0000 (11:28 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 11 Oct 2013 23:37:46 +0000 (16:37 -0700)
commit8c05dc598e5bc0eb33791de23157cf1e47cb580e
treecd5eda6395b47f5ccd8621c77d82f24e017ba4b4
parent2b90f01b219e390e1f1bf68dd7a2333efb3e3eff
USB: EHCI: No SSPLIT allowed in uframe 7

The scheduling code in ehci-hcd contains an error.  For full-speed
isochronous-OUT transfers, the EHCI spec forbids scheduling
Start-Split transactions in H-microframe 7, but the driver allows it
anyway.  This patch adds a check to prevent it.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/host/ehci-sched.c