From: Tejun Heo <htejun@gmail.com>
Date: Sun, 2 Apr 2006 09:51:53 +0000 (+0900)
Subject: [PATCH] libata: clear ATA_DFLAG_PIO before setting it
X-Git-Tag: firefly_0821_release~35456^2~144
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e8384607d4f395985e3cc5f82d75fc73efc2ecf0;p=firefly-linux-kernel-4.4.55.git

[PATCH] libata: clear ATA_DFLAG_PIO before setting it

ata_dev_set_mode() is now responsible for managing ATA_DFLAG_PIO.
Clear it before setting it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 985283cbcbdf..007d18888045 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -1949,6 +1949,7 @@ static int ata_dev_set_mode(struct ata_port *ap, struct ata_device *dev)
 	unsigned int err_mask;
 	int rc;
 
+	dev->flags &= ~ATA_DFLAG_PIO;
 	if (dev->xfer_shift == ATA_SHIFT_PIO)
 		dev->flags |= ATA_DFLAG_PIO;