Do not free sc if attach failed, as it was allocated by the bus infrastructure, not us.  This appears to be a leftover from an older version of the driver.
Do not free sc if attach failed, as it was allocated by the bus
infrastructure, not us.  This appears to be a leftover from an older
version of the driver.

Submitted by:	avg
Tested by:	Anton Shterenlikht <mexas bristol.ac.uk>
MFC after:	1 week
X-MFC-Note:	To stable/8 and stable/7 only

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase