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(parent: ee670af) | patch
usb: dwc3: gadget: delay unmap of bounced requests
authorJanusz Dziedzic <januszx.dziedzic@intel.com>
Mon, 13 Mar 2017 12:11:32 +0000 (14:11 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 12 Apr 2017 10:41:15 +0000 (12:41 +0200)
commitd9a97dcdf5c23f5a074e204e7a8fd355412146b8
treeaf236a165f9ef416cfacbdbc122773924de58d5dtree | snapshot
parentee670af5feede68f0ad22b329626594b8aebefc3commit | diff
usb: dwc3: gadget: delay unmap of bounced requests

commit de288e36fe33f7e06fa272bc8e2f85aa386d99aa upstream.

In the case of bounced ep0 requests, we must delay DMA operation until
after ->complete() otherwise we might overwrite contents of req->buf.

This caused problems with RNDIS gadget.

Signed-off-by: Janusz Dziedzic <januszx.dziedzic@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/dwc3/gadget.c diff | blob | history
Domain: System / Kernel;