[PATCH] drivers/block/nbd.c: don't defer compile error to runtime

If we can detect a problem at compile time, the compilation should fail.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index a9bde30dadad..8bca4905d7f7 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -639,10 +639,7 @@ static int __init nbd_init(void)
         int err = -ENOMEM;
         int i;
 
-        if (sizeof(struct nbd_request) != 28) {
-                printk(KERN_CRIT "nbd: sizeof nbd_request needs to be 28 in order to work!\n" );
-                return -EIO;
-        }
+        BUILD_BUG_ON(sizeof(struct nbd_request) != 28);
 
         if (nbds_max > MAX_NBD) {
                 printk(KERN_CRIT "nbd: cannot allocate more than %u nbds; %u requested.\n", MAX_NBD,