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| author | jhb <jhb@FreeBSD.org> | 2015-12-17 20:33:20 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2015-12-17 20:33:20 +0000 |
| commit | 4ef184b756b083683d4bac92ab02330aa08c4427 (patch) | |
| tree | 55233d5b46642d9ac02dae763a511093efafa84f /usr.sbin | |
| parent | 0a0682484a5a56bf03288a90137c06ea144743e7 (diff) | |
| download | FreeBSD-src-4ef184b756b083683d4bac92ab02330aa08c4427.zip FreeBSD-src-4ef184b756b083683d4bac92ab02330aa08c4427.tar.gz | |
t seems certain Intel GPUs use GPIO bitbanging over a child device
instead of GMBUS access for I2C transfers. The GMBUS driver falls back
to this mode when a transfer times out. However, the first transfer to
timeout was sending the request back to itself resulting in an panic due
to recursing on a lock. Fix it to forward the request on to the proper
device. This appears to have been accidentally changed in r277487.
Reported by: Joe Maloney <jmaloney@pcbsd.org>
Reviewed by: adrian, dumbbell, imp
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D4599
Diffstat (limited to 'usr.sbin')
0 files changed, 0 insertions, 0 deletions
