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path: root/drivers/ide/ide-probe.c
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Diffstat (limited to 'drivers/ide/ide-probe.c')
-rw-r--r--drivers/ide/ide-probe.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index b4c9f63a3854..d1011712601c 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -719,9 +719,9 @@ EXPORT_SYMBOL_GPL(ide_undecoded_slave);
*/
static void probe_hwif(ide_hwif_t *hwif, void (*fixup)(ide_hwif_t *hwif))
{
- unsigned int unit;
unsigned long flags;
unsigned int irqd;
+ int unit;
if (hwif->noprobe)
return;
@@ -777,10 +777,9 @@ static void probe_hwif(ide_hwif_t *hwif, void (*fixup)(ide_hwif_t *hwif))
printk(KERN_DEBUG "%s: Wait for ready failed before probe !\n", hwif->name);
/*
- * Second drive should only exist if first drive was found,
- * but a lot of cdrom drives are configured as single slaves.
+ * Need to probe slave device first to make it release PDIAG-.
*/
- for (unit = 0; unit < MAX_DRIVES; ++unit) {
+ for (unit = MAX_DRIVES - 1; unit >= 0; unit--) {
ide_drive_t *drive = &hwif->drives[unit];
drive->dn = (hwif->channel ? 2 : 0) + unit;
(void) probe_for_drive(drive);