const: make block_device_operations const

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index cf7877f..8f569e3 100644
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -748,7 +748,7 @@
 	return !fs->disk_in;
 }
 
-static struct block_device_operations floppy_fops = {
+static const struct block_device_operations floppy_fops = {
 	.owner		 = THIS_MODULE,
 	.open		 = floppy_open,
 	.release	 = floppy_release,