[POWERPC] ps3: system bus minor mmio fix

Fix two minor bugs in the PS3 system bus mmio region code.  First, on error or
when freeing a region, retain the bus_addr and len fields to allow subsequent
calls to create the region.  Second, correct the region address argument to the
lv1_unmap_device_mmio_region() call.

Fixes modprobe/rmmod of some drivers.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/ps3/system-bus.c b/drivers/ps3/system-bus.c
index d79f949bcb2a..468bdbcc722c 100644
--- a/drivers/ps3/system-bus.c
+++ b/drivers/ps3/system-bus.c
@@ -50,7 +50,7 @@ int ps3_mmio_region_create(struct ps3_mmio_region *r)
         if (result) {
                 pr_debug("%s:%d: lv1_map_device_mmio_region failed: %s\n",
                         __func__, __LINE__, ps3_result(result));
-                r->lpar_addr = r->len = r->bus_addr = 0;
+                r->lpar_addr = 0;
         }
 
         dump_mmio_region(r);
@@ -62,13 +62,13 @@ int ps3_free_mmio_region(struct ps3_mmio_region *r)
         int result;
 
         result = lv1_unmap_device_mmio_region(r->did.bus_id, r->did.dev_id,
-                r->bus_addr);
+                r->lpar_addr);
 
         if (result)
                 pr_debug("%s:%d: lv1_unmap_device_mmio_region failed: %s\n",
                         __func__, __LINE__, ps3_result(result));
 
-        r->lpar_addr = r->len = r->bus_addr = 0;
+        r->lpar_addr = 0;
         return result;
 }