[PATCH] ide: if the id fields looks screwy, disable DMA

It's the safer choice. Originally due to a bug in itx821x, but a
generally sound thing to do.

Signed-off-by: Jens Axboe <axboe@suse.de>

diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 98918fb..7c3a13e 100644 (file)
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -750,7 +750,7 @@ void ide_dma_verbose(ide_drive_t *drive)
                        goto bug_dma_off;
                printk(", DMA");
        } else if (id->field_valid & 1) {
-               printk(", BUG");
+               goto bug_dma_off;
        }
        return;
 bug_dma_off: