tree cda57a693c27372b3553c71dbec7a01af20af9bf
parent b843aa216c4da250c6732cd76430d73a6589beb5
author Haavard Skinnemoen <hskinnemoen@atmel.com> 1202473262 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1202491357 -0800

atmel_serial: use cpu_relax() when busy-waiting

Replace two instances of barrier() with cpu_relax() since that's the right
thing to do when busy-waiting.  This does not actually change anything since
cpu_relax() is defined as barrier() on both ARM and AVR32.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>