tree af12858b842579e8924b30cb636b96fcca6f46b1
parent 6a027eff62f6ae32d49f2ae5dadd6f4eee1ddae2
author Tejun Heo <tj@kernel.org> 1289645717 +0100
committer Tejun Heo <tj@kernel.org> 1289645717 +0100

block: check bdev_read_only() from blkdev_get()

bdev read-only status can be queried using bdev_read_only() and may
change while the device is being opened.  Enforce it by checking it
from blkdev_get() after open succeeds.

This makes bdev_read_only() check in open_bdev_exclusive() and
fsg_lun_open() unnecessary.  Drop them.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: linux-usb@vger.kernel.org