Fix CDROM permission check, by Kazu <kazoo@r3.dion.ne.jp>.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2331 c046a42c-6fe2-441c-8c8c-71466251a162

block-raw.c

@@ -914,8 +914,13 @@ static int raw_open(BlockDriverState *bs, const char *filename, int flags)
     s->hfile = CreateFile(filename, access_flags, 
                           FILE_SHARE_READ, NULL,
                           create_flags, overlapped, NULL);
-    if (s->hfile == INVALID_HANDLE_VALUE) 
+    if (s->hfile == INVALID_HANDLE_VALUE) {
+        int err = GetLastError();
+
+        if (err == ERROR_ACCESS_DENIED)
+            return -EACCES;
         return -1;
+    }
     return 0;
 }
 
@@ -1278,8 +1283,13 @@ static int hdev_open(BlockDriverState *bs, const char *filename, int flags)
     s->hfile = CreateFile(filename, access_flags, 
                           FILE_SHARE_READ, NULL,
                           create_flags, overlapped, NULL);
-    if (s->hfile == INVALID_HANDLE_VALUE) 
+    if (s->hfile == INVALID_HANDLE_VALUE) {
+        int err = GetLastError();
+
+        if (err == ERROR_ACCESS_DENIED)
+            return -EACCES;
         return -1;
+    }
     return 0;
 }