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authorTejun Heo <htejun@gmail.com>2008-04-23 12:14:05 +0900
committerJeff Garzik <jgarzik@redhat.com>2008-04-25 00:45:48 -0400
commita0b9f4bc1ec2ea25e47e7958e544fef0d122e012 (patch)
tree26b175215a1a1abad610115ba26f6578760239f3 /drivers/ata/sata_nv.c
parent15fe982e429e0e6b7466719acb6cfd9dbfe47f0c (diff)
sata_nv: make hardreset return -EAGAIN on success
sata_nv hardreset can't classify but was left out while unifying follow-up SRST request mechanism[1]. This caused detection failures on those controllers. Fix it. Reported and bisected by Roland Dreier, Petr Vandrovec and Marc Dionne. Thanks guys. [1] 305d2a1ab137d11d573319c315748a87060fe82d Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Roland Dreier <rdreier@cisco.com> Cc: Petr Vandrovec <vandrove@vc.cvut.cz> Cc: Marc Dionne <marc.c.dionne@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/sata_nv.c')
-rw-r--r--drivers/ata/sata_nv.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 109b0749572..858f70610ed 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -1591,13 +1591,16 @@ static void nv_mcp55_thaw(struct ata_port *ap)
static int nv_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline)
{
- unsigned int dummy;
+ int rc;
/* SATA hardreset fails to retrieve proper device signature on
- * some controllers. Don't classify on hardreset. For more
- * info, see http://bugzilla.kernel.org/show_bug.cgi?id=3352
+ * some controllers. Request follow up SRST. For more info,
+ * see http://bugzilla.kernel.org/show_bug.cgi?id=3352
*/
- return sata_sff_hardreset(link, &dummy, deadline);
+ rc = sata_sff_hardreset(link, class, deadline);
+ if (rc)
+ return rc;
+ return -EAGAIN;
}
static void nv_adma_error_handler(struct ata_port *ap)