virtio_blk: remove multichar constant.

drivers/block/virtio_blk.c:228:13: warning: multi-character character constant

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: john cooper <john.cooper@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 67dcb193ab2e..e32b24b7a3a2 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -225,7 +225,7 @@ static int virtblk_ioctl(struct block_device *bdev, fmode_t mode,
         struct gendisk *disk = bdev->bd_disk;
         struct virtio_blk *vblk = disk->private_data;
 
-        if (cmd == 'VBID') {
+        if (cmd == 0x56424944) { /* 'VBID' */
                 void __user *usr_data = (void __user *)data;
                 char id_str[VIRTIO_BLK_ID_BYTES];
                 int err;