drm/radeon/kms: handle the case of no active displays properly in the bandwidth code
authorAlex Deucher <alexdeucher@gmail.com>
Mon, 2 Aug 2010 16:13:46 +0000 (12:13 -0400)
committerDave Airlie <airlied@redhat.com>
Tue, 3 Aug 2010 23:49:20 +0000 (09:49 +1000)
commite06b14ee91a2ddefc9a67443a6cd8ee0fa800115
tree621e5dc5f78e538ff80a0448a803fb1f3ce93add
parentba4420c224c2808f2661cf8428f43ceef7a73a4a
drm/radeon/kms: handle the case of no active displays properly in the bandwidth code

Logic was:
if (mode0 && mode1)
else if (mode0)
else

Should be:
if (mode0 && mode1)
else if (mode0)
else if (mode1)

Otherwise we may end up calculating the priority regs with
unitialized values.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=16492

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/radeon/rs690.c
drivers/gpu/drm/radeon/rv515.c