libata: Fix ata_busy_wait() kernel docs

> Looks like you should use ata_busy_wait() here, rather than reproducing
> the same code again.

It waits in 10uS chunks while 1uS chunks were used in the workaround.
Could indeed do that once I know the fix is right. While I'm at it the
ata_busy_wait kerneldoc is borked so here's a fix

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 22aa69e20905..91bb8ceef0b5 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1054,6 +1054,8 @@ static inline void ata_pause(struct ata_port *ap)
 /**
  *      ata_busy_wait - Wait for a port status register
  *      @ap: Port to wait for.
+ *      @bits: bits that must be clear
+ *      @max: number of 10uS waits to perform
  *
  *      Waits up to max*10 microseconds for the selected bits in the port's
  *      status register to be cleared.