tree b4985870b0cb802dd004d551152fe80a104c8d3d
parent ba47e3865e8023e79b670793a41508222b5f0322
author Matthew Wilcox <matthew.r.wilcox@intel.com> 1367664197 -0400
committer Matthew Wilcox <matthew.r.wilcox@intel.com> 1368021271 -0400

NVMe: Only clear the enable bit when disabling controller

Many of the bits in the Controller Configuration register may only be
modified when the Enable bit is clear.  Clearing them at the same time
as the Enable bit might be OK, but let's play it safe and only touch the
Enable bit.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>