Alan Cox wrote:
diff -uprdN linux/drivers/ata/libata-core.c linux/drivers/ata/libata-core.c
--- linux/drivers/ata/libata-core.c 2007-03-07 22:13:24.000000000 -0800
+++ linux/drivers/ata/libata-core.c 2007-03-08 00:15:37.000000000 -0800
@@ -3455,7 +3455,8 @@ static void ata_dev_xfermask(struct ata_
"device is on DMA blacklist, disabling DMA\n");
}
- if ((host->flags & ATA_HOST_SIMPLEX) && host->simplex_claimed != ap) {
+ if ((host->flags & ATA_HOST_SIMPLEX) &&
+ host->simplex_claimed && host->simplex_claimed != ap) {
A different version of this fix just went upstream for 2.6.21 via Jeff.
Which of the two is correct?
I believe the other one looks like this:
- if ((host->flags & ATA_HOST_SIMPLEX) && host->simplex_claimed != ap) {
- if ((host->flags & ATA_HOST_SIMPLEX) && host->simplex_claimed == ap) {
Cheers
-
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