7 files changed, 18 insertions, 45 deletions

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index ac6d4d3218b3..8ba3f135da22 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -925,6 +925,8 @@ static void dasd_handle_killed_request(struct ccw_device *cdev,
         struct dasd_ccw_req *cqr;
         struct dasd_device *device;
 
+        if (!intparm)
+                return;
         cqr = (struct dasd_ccw_req *) intparm;
         if (cqr->status != DASD_CQR_IN_IO) {
                 MESSAGE(KERN_DEBUG,
@@ -976,17 +978,16 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
         if (IS_ERR(irb)) {
                 switch (PTR_ERR(irb)) {
                 case -EIO:
-                        dasd_handle_killed_request(cdev, intparm);
                         break;
                 case -ETIMEDOUT:
                         printk(KERN_WARNING"%s(%s): request timed out\n",
                                __func__, cdev->dev.bus_id);
-                        //FIXME - dasd uses own timeout interface...
                         break;
                 default:
                         printk(KERN_WARNING"%s(%s): unknown error %ld\n",
                                __func__, cdev->dev.bus_id, PTR_ERR(irb));
                 }
+                dasd_handle_killed_request(cdev, intparm);
                 return;
         }
 
diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c
index f4fb40257348..d774e79476fe 100644
--- a/drivers/s390/block/dasd_devmap.c
+++ b/drivers/s390/block/dasd_devmap.c
@@ -86,10 +86,10 @@ static DEFINE_SPINLOCK(dasd_devmap_lock);
 static struct list_head dasd_hashlists[256];
 int dasd_max_devindex;
 
-static struct dasd_devmap *dasd_add_busid(char *, int);
+static struct dasd_devmap *dasd_add_busid(const char *, int);
 
 static inline int
-dasd_hash_busid(char *bus_id)
+dasd_hash_busid(const char *bus_id)
 {
         int hash, i;
 
@@ -394,7 +394,7 @@ dasd_parse(void)
  * devices.
  */
 static struct dasd_devmap *
-dasd_add_busid(char *bus_id, int features)
+dasd_add_busid(const char *bus_id, int features)
 {
         struct dasd_devmap *devmap, *new, *tmp;
         int hash;
@@ -430,7 +430,7 @@ dasd_add_busid(char *bus_id, int features)
  * Find devmap for device with given bus_id.
  */
 static struct dasd_devmap *
-dasd_find_busid(char *bus_id)
+dasd_find_busid(const char *bus_id)
 {
         struct dasd_devmap *devmap, *tmp;
         int hash;
@@ -452,7 +452,7 @@ dasd_find_busid(char *bus_id)
  * Check if busid has been added to the list of dasd ranges.
  */
 int
-dasd_busid_known(char *bus_id)
+dasd_busid_known(const char *bus_id)
 {
         return IS_ERR(dasd_find_busid(bus_id)) ? -ENOENT : 0;
 }
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 6c624bf44617..fb2f931cf844 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -598,7 +598,7 @@ struct dasd_device *dasd_device_from_cdev_locked(struct ccw_device *);
 struct dasd_device *dasd_device_from_devindex(int);
 
 int dasd_parse(void);
-int dasd_busid_known(char *);
+int dasd_busid_known(const char *);
 
 /* externals in dasd_gendisk.c */
 int  dasd_gendisk_init(void);
diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c
index 7ad8cf157641..76e44eb7c47f 100644
--- a/drivers/s390/char/tape_core.c
+++ b/drivers/s390/char/tape_core.c
@@ -76,32 +76,9 @@ const char *tape_op_verbose[TO_SIZE] =
         [TO_KEKL_QUERY] = "KLQ",[TO_RDC] = "RDC",
 };
 
-static int
-busid_to_int(char *bus_id)
+static int devid_to_int(struct ccw_dev_id *dev_id)
 {
-        int     dec;
-        int     d;
-        char *  s;
-
-        for(s = bus_id, d = 0; *s != '\0' && *s != '.'; s++)
-                d = (d * 10) + (*s - '0');
-        dec = d;
-        for(s++, d = 0; *s != '\0' && *s != '.'; s++)
-                d = (d * 10) + (*s - '0');
-        dec = (dec << 8) + d;
-
-        for(s++; *s != '\0'; s++) {
-                if (*s >= '0' && *s <= '9') {
-                        d = *s - '0';
-                } else if (*s >= 'a' && *s <= 'f') {
-                        d = *s - 'a' + 10;
-                } else {
-                        d = *s - 'A' + 10;
-                }
-                dec = (dec << 4) + d;
-        }
-
-        return dec;
+        return dev_id->devno + (dev_id->ssid << 16);
 }
 
 /*
@@ -551,6 +528,7 @@ tape_generic_probe(struct ccw_device *cdev)
 {
         struct tape_device *device;
         int ret;
+        struct ccw_dev_id dev_id;
 
         device = tape_alloc_device();
         if (IS_ERR(device))
@@ -565,7 +543,8 @@ tape_generic_probe(struct ccw_device *cdev)
         cdev->dev.driver_data = device;
         cdev->handler = __tape_do_irq;
         device->cdev = cdev;
-        device->cdev_id = busid_to_int(cdev->dev.bus_id);
+        ccw_device_get_id(cdev, &dev_id);
+        device->cdev_id = devid_to_int(&dev_id);
         PRINT_INFO("tape device %s found\n", cdev->dev.bus_id);
         return ret;
 }
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index d364e0bfae12..e8487347e4d4 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -858,7 +858,7 @@ static int __init vmlogrdr_init(void)
         for (i=0; i < MAXMINOR; ++i ) {
                 sys_ser[i].buffer = (char *) get_zeroed_page(GFP_KERNEL);
                 if (!sys_ser[i].buffer) {
-                        rc = ENOMEM;
+                        rc = -ENOMEM;
                         break;
                 }
                 sys_ser[i].current_position = sys_ser[i].buffer;
diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c
index 9c21b8f43f9b..a4a5f2efea48 100644
--- a/drivers/s390/cio/blacklist.c
+++ b/drivers/s390/cio/blacklist.c
@@ -19,7 +19,6 @@
 
 #include <asm/cio.h>
 #include <asm/uaccess.h>
-#include <asm/cio.h>
 
 #include "blacklist.h"
 #include "cio.h"
diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c
index ba559053402e..5cf7be008e98 100644
--- a/drivers/s390/cio/device_pgid.c
+++ b/drivers/s390/cio/device_pgid.c
@@ -243,16 +243,10 @@ __ccw_device_do_pgid(struct ccw_device *cdev, __u8 func)
         /* Setup sense path group id channel program. */
         cdev->private->pgid[0].inf.fc = func;
         ccw = cdev->private->iccws;
-        if (!cdev->private->flags.pgid_single) {
-                cdev->private->pgid[0].inf.fc |= SPID_FUNC_MULTI_PATH;
-                ccw->cmd_code = CCW_CMD_SUSPEND_RECONN;
-                ccw->cda = 0;
-                ccw->count = 0;
-                ccw->flags = CCW_FLAG_SLI | CCW_FLAG_CC;
-                ccw++;
-        } else
+        if (cdev->private->flags.pgid_single)
                 cdev->private->pgid[0].inf.fc |= SPID_FUNC_SINGLE_PATH;
-
+        else
+                cdev->private->pgid[0].inf.fc |= SPID_FUNC_MULTI_PATH;
         ccw->cmd_code = CCW_CMD_SET_PGID;
         ccw->cda = (__u32) __pa (&cdev->private->pgid[0]);
         ccw->count = sizeof (struct pgid);