overlay: Fix underflow for clamping initial values
authorChris Wilson <chris@chris-wilson.co.uk>
Wed, 21 Aug 2013 12:49:45 +0000 (13:49 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Wed, 21 Aug 2013 12:49:45 +0000 (13:49 +0100)
commit5e66c8c23925090bc230557704a23aaadbd5ad9a
tree5c97da9212cbd8d08e8c0c00b2c2f3779ec4073b
parent8b9f919b6346eac65be25e4f2e7c8f1b3168eb0a
overlay: Fix underflow for clamping initial values

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
overlay/chart.c