From 71ef51cc1756d1c56b57c70e7cc27a3559c81ee6 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Fri, 28 Jul 2006 09:02:17 +0200 Subject: [PATCH] it821x: fix ide dma setup bug Only enable dma for a valid speed setting. Signed-off-by: Jens Axboe --- drivers/ide/pci/it821x.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'drivers/ide') diff --git a/drivers/ide/pci/it821x.c b/drivers/ide/pci/it821x.c index 3cb04424d35..e9bad185968 100644 --- a/drivers/ide/pci/it821x.c +++ b/drivers/ide/pci/it821x.c @@ -498,9 +498,14 @@ static int config_chipset_for_dma (ide_drive_t *drive) { u8 speed = ide_dma_speed(drive, it821x_ratemask(drive)); - config_it821x_chipset_for_pio(drive, !speed); - it821x_tune_chipset(drive, speed); - return ide_dma_enable(drive); + if (speed) { + config_it821x_chipset_for_pio(drive, 0); + it821x_tune_chipset(drive, speed); + + return ide_dma_enable(drive); + } + + return 0; } /** -- cgit v1.2.3-18-g5258