hid_post_reset checks the stored report descriptor against what is currently
returned by the device. An HID driver's report_fixup method may have
changed the
stored descriptor, however, creating false positives. These leave some
devices
nonfunctional after a resume, with a "reset_resume error 1" reported.
This patch
passes the new descriptor to the driver's report_fixup method, if any,
before it
is compared to the stored one.
BugLink: http://bugs.launchpad.net/bugs/1049623
Signed-off-by: Kevin Daughtridge <kevin@xxxxxxxx>
---
--- a/drivers/hid/usbhid/hid-core.c 2012-08-20 10:17:09.000000000 -0700
+++ b/drivers/hid/usbhid/hid-core.c 2012-09-16 18:51:45.381868737 -0700
@@ -1436,6 +1436,10 @@ static int hid_post_reset(struct usb_int
kfree(rdesc);
return 1;
}
+
+ if (hid->driver && hid->driver->report_fixup)
+ rdesc = hid->driver->report_fixup(hid, rdesc, &status);
+
status = memcmp(rdesc, hid->rdesc, hid->rsize);
kfree(rdesc);
if (status != 0) {
--
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