X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fs390%2Fcio%2Fdevice_ops.c;h=93a897eebfff769c4aaddac3738d9c363291d03d;hb=28bdc6f6233f380ddc0b430cabd88ffeafea34c7;hp=a60124264beec97583a150973f07550eb4845193;hpb=6ab3d5624e172c553004ecc862bfeac16d9d68b7;p=linux-2.6

diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index a60124264b..93a897eebf 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -96,6 +96,12 @@ ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa,
 	ret = cio_set_options (sch, flags);
 	if (ret)
 		return ret;
+	/* Adjust requested path mask to excluded varied off paths. */
+	if (lpm) {
+		lpm &= sch->opm;
+		if (lpm == 0)
+			return -EACCES;
+	}
 	ret = cio_start_key (sch, cpa, lpm, key);
 	if (ret == 0)
 		cdev->private->intparm = intparm;
@@ -250,7 +256,7 @@ ccw_device_get_path_mask(struct ccw_device *cdev)
 	if (!sch)
 		return 0;
 	else
-		return sch->vpm;
+		return sch->lpm;
 }
 
 static void
@@ -263,6 +269,9 @@ ccw_device_wake_up(struct ccw_device *cdev, unsigned long ip, struct irb *irb)
 	/* Abuse intparm for error reporting. */
 	if (IS_ERR(irb))
 		cdev->private->intparm = -EIO;
+	else if (irb->scsw.cc == 1)
+		/* Retry for deferred condition code. */
+		cdev->private->intparm = -EAGAIN;
 	else if ((irb->scsw.dstat !=
 		  (DEV_STAT_CHN_END|DEV_STAT_DEV_END)) ||
 		 (irb->scsw.cstat != 0)) {
@@ -301,7 +310,7 @@ __ccw_device_retry_loop(struct ccw_device *cdev, struct ccw1 *ccw, long magic, _
 	sch = to_subchannel(cdev->dev.parent);
 	do {
 		ret = cio_start (sch, ccw, lpm);
-		if ((ret == -EBUSY) || (ret == -EACCES)) {
+		if (ret == -EBUSY) {
 			/* Try again later. */
 			spin_unlock_irq(&sch->lock);
 			msleep(10);
@@ -430,6 +439,13 @@ read_conf_data_lpm (struct ccw_device *cdev, void **buffer, int *length, __u8 lp
 	if (!ciw || ciw->cmd == 0)
 		return -EOPNOTSUPP;
 
+	/* Adjust requested path mask to excluded varied off paths. */
+	if (lpm) {
+		lpm &= sch->opm;
+		if (lpm == 0)
+			return -EACCES;
+	}
+
 	rcd_ccw = kzalloc(sizeof(struct ccw1), GFP_KERNEL | GFP_DMA);
 	if (!rcd_ccw)
 		return -ENOMEM;