| commit | 52b0fecdba217e02d7e7eef975d942b153950b2f | |
| author | Gerd Hoffmann <kraxel@redhat.com> | |
| Wed, 21 Mar 2012 17:25:25 +0000 (21 18:25 +0100) | ||
| committer | Gerd Hoffmann <kraxel@redhat.com> | |
| Tue, 17 Apr 2012 08:23:27 +0000 (17 10:23 +0200) | ||
| tree | a3ad85305d76fcdea10c8b30135be0f35a4f37de | treesnapshot (tar.gz zip) |
| parent | eeb0cf9abf5992f35eca18c4cc63300df30521a4 | commitdiff |
usb-uhci: stop queue filling when we find a in-flight td
Not only QHs can form rings, but TDs too. With the new
queuing/pipelining support we are following TD chains and
can actually walk in circles. An assert() prevents us from
entering an endless loop then.
Fix is easy: Just stop queuing when we figure the TD we are
about to queue up is in flight already.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Not only QHs can form rings, but TDs too. With the new
queuing/pipelining support we are following TD chains and
can actually walk in circles. An assert() prevents us from
entering an endless loop then.
Fix is easy: Just stop queuing when we figure the TD we are
about to queue up is in flight already.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| hw/usb/hcd-uhci.c | diffblobblamehistory |