From: Tejun Heo <htejun@gmail.com>
Date: Sun, 18 May 2008 16:15:05 +0000 (+0900)
Subject: libata: fix sata_link_hardreset() @online out parameter handling
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0cbf0711a1ebcc4d3aea8e11def684afc2c07ef8;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

libata: fix sata_link_hardreset() @online out parameter handling

The @online out parameter is supposed to set to true iff link is
online and reset succeeded as advertised in the function description
and callers are coded expecting that.  However, sata_link_reset()
didn't behave this way on device readiness test failure.  Fix it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 927b692d723..c6c316fc837 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3653,9 +3653,13 @@ int sata_link_hardreset(struct ata_link *link, const unsigned long *timing,
 	if (check_ready)
 		rc = ata_wait_ready(link, deadline, check_ready);
  out:
-	if (rc && rc != -EAGAIN)
+	if (rc && rc != -EAGAIN) {
+		/* online is set iff link is online && reset succeeded */
+		if (online)
+			*online = false;
 		ata_link_printk(link, KERN_ERR,
 				"COMRESET failed (errno=%d)\n", rc);
+	}
 	DPRINTK("EXIT, rc=%d\n", rc);
 	return rc;
 }