1 files changed, 38 insertions, 6 deletions

diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index a01f3bba4a7b..c28444af0919 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -238,8 +238,6 @@ s390_subchannel_remove_chpid(struct device *dev, void *data)
         /* Check for single path devices. */
         if (sch->schib.pmcw.pim == 0x80)
                 goto out_unreg;
-        if (sch->vpm == mask)
-                goto out_unreg;
 
         if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) &&
             (sch->schib.scsw.actl & SCSW_ACTL_SCHACT) &&
@@ -258,6 +256,8 @@ s390_subchannel_remove_chpid(struct device *dev, void *data)
         /* trigger path verification. */
         if (sch->driver && sch->driver->verify)
                 sch->driver->verify(&sch->dev);
+        else if (sch->vpm == mask)
+                goto out_unreg;
 out_unlock:
         spin_unlock_irq(&sch->lock);
         return 0;
@@ -1391,10 +1391,8 @@ new_channel_path(int chpid)
         /* fill in status, etc. */
         chp->id = chpid;
         chp->state = 1;
-        chp->dev = (struct device) {
-                .parent  = &css[0]->device,
-                .release = chp_release,
-        };
+        chp->dev.parent = &css[0]->device;
+        chp->dev.release = chp_release;
         snprintf(chp->dev.bus_id, BUS_ID_SIZE, "chp0.%x", chpid);
 
         /* Obtain channel path description and fill it in. */
@@ -1464,6 +1462,40 @@ chsc_get_chp_desc(struct subchannel *sch, int chp_no)
         return desc;
 }
 
+static int reset_channel_path(struct channel_path *chp)
+{
+        int cc;
+
+        cc = rchp(chp->id);
+        switch (cc) {
+        case 0:
+                return 0;
+        case 2:
+                return -EBUSY;
+        default:
+                return -ENODEV;
+        }
+}
+
+static void reset_channel_paths_css(struct channel_subsystem *css)
+{
+        int i;
+
+        for (i = 0; i <= __MAX_CHPID; i++) {
+                if (css->chps[i])
+                        reset_channel_path(css->chps[i]);
+        }
+}
+
+void cio_reset_channel_paths(void)
+{
+        int i;
+
+        for (i = 0; i <= __MAX_CSSID; i++) {
+                if (css[i] && css[i]->valid)
+                        reset_channel_paths_css(css[i]);
+        }
+}
 
 static int __init
 chsc_alloc_sei_area(void)