tree 3938e40a4b70295d7318d6b14777d0f02004438d
parent 704af52bd13a5d9f3c60c496c68e752fafdfb434
author Arjan van de Ven <arjan@linux.intel.com> 1220828935 -0700
committer Arjan van de Ven <arjan@linux.intel.com> 1220829064 -0700

hrtimer: fix signed/unsigned bug in slack estimator

the slack estimator used unsigned math; however for very short delay it's
possible that by the time you calculate the timeout, it's already passed and
you get a negative time/slack... in an unsigned variable... which then gets
turned into a 100 msec delay rather than zero.

This patch fixes this by using a signed typee in the right places.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>