unregister_blkdev() delete redundant messages in callers

No need to warn unregister_blkdev() failure by the callers.  (The previous
patch makes unregister_blkdev() print error message in error case)

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 2 insertions, 5 deletions

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 06eaa11cbc2f..e425daa1eac3 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1568,8 +1568,7 @@ static void __exit loop_exit(void)
                 loop_del_one(lo);
 
         blk_unregister_region(MKDEV(LOOP_MAJOR, 0), range);
-        if (unregister_blkdev(LOOP_MAJOR, "loop"))
-                printk(KERN_WARNING "loop: cannot unregister blkdev\n");
+        unregister_blkdev(LOOP_MAJOR, "loop");
 }
 
 module_init(loop_init);
diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c
index 2abf94cc3137..e40fa98842e5 100644
--- a/drivers/block/z2ram.c
+++ b/drivers/block/z2ram.c
@@ -371,9 +371,7 @@ static void __exit z2_exit(void)
 {
     int i, j;
     blk_unregister_region(MKDEV(Z2RAM_MAJOR, 0), 256);
-    if ( unregister_blkdev( Z2RAM_MAJOR, DEVICE_NAME ) != 0 )
-        printk( KERN_ERR DEVICE_NAME ": unregister of device failed\n");
-
+    unregister_blkdev(Z2RAM_MAJOR, DEVICE_NAME);
     del_gendisk(z2ram_gendisk);
     put_disk(z2ram_gendisk);
     blk_cleanup_queue(z2_queue);