K 10
svn:author
V 3
smh
K 8
svn:date
V 27
2015-04-28T22:46:58.068369Z
K 7
svn:log
V 697
Fix misuse of input argument in traverse_visitbp

In traverse_visitbp(), the input argument dnp is modified in the middle
to point to a temporary buffer. Originally this doesn't matter, because
no user of TRAVERSE_POST dereferences it. However, in fbeddd6 a piece of
code is added dereferencing dnp after the modification, creating a possible
bug.

We fix this by creating a new local variable cdnp for the DMU_OT_DNODE case,
so we don't modify the input argument. Also we introduce different local
variables in the DMU_OT_OBJSET case to prevent confusion between the input
argument.

Obtained from:	zfsonlinux (a585f2f844ed3d4270221fed88f5e494eb55d932)
MFC after:	2 weeks
Sponsored by:	Multiplay

END