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-rw-r--r--include/linux/zorro.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/zorro.h b/include/linux/zorro.h
index 7bf9db525e9e..dff42025649b 100644
--- a/include/linux/zorro.h
+++ b/include/linux/zorro.h
@@ -187,7 +187,7 @@ extern struct zorro_dev *zorro_find_device(zorro_id id,
#define zorro_resource_start(z) ((z)->resource.start)
#define zorro_resource_end(z) ((z)->resource.end)
-#define zorro_resource_len(z) ((z)->resource.end-(z)->resource.start+1)
+#define zorro_resource_len(z) (resource_size(&(z)->resource))
#define zorro_resource_flags(z) ((z)->resource.flags)
#define zorro_request_device(z, name) \