Changeset 1953 for Whitix/tags/0.2b/devices/kedev/sdevice.c

Timestamp:

02/28/09 15:54:38 (3 years ago)

Author:

mwhitworth

Message:

Add some extra checks in the request layer.

Files:

• Whitix/tags/0.2b/devices/kedev/sdevice.c (modified) (3 diffs)

Whitix/tags/0.2b/devices/kedev/sdevice.c

@@ -119 +119 @@
         /* Set up the request list head */
         INIT_LIST_HEAD(&dev->requestList);
+        INIT_WAITQUEUE_HEAD(&dev->flushDone);
         return 0;
 }
@@ -127 +128 @@
 {
         struct Request* request;
+
+        if (!buffer->device->blockSize)
+                return NULL;
 
         request=(struct Request*)MemAlloc(sizeof(struct Request));
@@ -197 +201 @@
         
         request->ioStatus = status;
-        
+                
         SpinLockIrq(&requestLock);
-        ListRemove(&request->list);
+        
+        ListRemoveInit(&request->list);
 
         if (status > 0)
-                KePrint("I/O error reading sector %u\n",request->sector);
+                KePrint("I/O error reading sector %u (%d)\n",request->sector, status);
                 
         /* BufferUnlock also wakes up the queue that's waiting for it */
+        
         BufferUnlock(request->buffer);
+                
         SpinUnlockIrq(&requestLock);