[PATCH 2.6.21-rc2] pmac ide: fix pmac_ide_dma_host_on() declaration

[Mikael Pettersson]

Building 2.6.21-rc2 on a PowerMac, I get:

drivers/ide/ppc/pmac.c: In function 'pmac_ide_setup_dma':
drivers/ide/ppc/pmac.c:2042: warning: assignment from incompatible pointer type
drivers/ide/ppc/pmac.c: In function 'pmac_ide_dma_host_on':
drivers/ide/ppc/pmac.c:1988: warning: control reaches end of non-void function

These occur because ->dma_host_on should be a function
returning void, but pmac.c bogusly declares it as returning
int, and furthermore fails to return a value from it.

Correcting the return type to void fixes both warnings.

Signed-off-by: Mikael Pettersson <mikpe at it.uu.se>

--- linux-2.6.21-rc2/drivers/ide/ppc/pmac.c.~1~	2007-03-03 12:31:07.000000000 +0100
+++ linux-2.6.21-rc2/drivers/ide/ppc/pmac.c	2007-03-03 13:18:56.000000000 +0100
@@ -1983,7 +1983,7 @@ static void pmac_ide_dma_host_off(ide_dr
 {
 }
 
-static int pmac_ide_dma_host_on(ide_drive_t *drive)
+static void pmac_ide_dma_host_on(ide_drive_t *drive)
 {
 }