K 10
svn:author
V 4
will
K 8
svn:date
V 27
2015-01-21T20:03:46.512552Z
K 7
svn:log
V 488
Fix panic in firewire and creation of invalid config ROM.

sys/boot/i386/libfirewire/firewire.c:
sys/dev/firewire/firewire.c:
	Fix configuration ROM generation count wrapping logic
	so that the generation count is never outside of
	allowed limits (0x2 -> 0xF).

sys/dev/firewire/firewire.c:
	In fw_xfer_unload(), xfer->fc may be NULL.  Protect
	against this before taking the fc lock.

Submitted by:	gibbs
MFC after:	1 week
Sponsored by:	Spectra Logic
MFSpectraBSD:	1110685 on 2015/01/05

END