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Commit 71ef51cc authored by Jens Axboe's avatar Jens Axboe
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[PATCH] it821x: fix ide dma setup bug 



Only enable dma for a valid speed setting.

Signed-off-by: default avatarJens Axboe <axboe@suse.de>
parent 0a8348d0

drivers/ide/pci/it821x.c

+8 −3
Original line number Diff line number Diff line
@@ -498,11 +498,16 @@ 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);

	if (speed) {

		config_it821x_chipset_for_pio(drive, 0);

		it821x_tune_chipset(drive, speed);



		return ide_dma_enable(drive);

	}



	return 0;

}



/**

 *	it821x_configure_drive_for_dma	-	set up for DMA transfers

 *	@drive: drive we are going to set up