On Tue, Jan 08, 2019 at 11:42:09AM +0000, fdmanana@xxxxxxxxxx wrote: > From: Filipe Manana <fdmanana@xxxxxxxx> > > If the call to btrfs_dev_replace_by_ioctl() failed we would overwrite the > error returned to user space with -EFAULT if the call to copy_to_user() > failed as well. Fix that by calling copy_to_user() only if no error > happened before or a device replace operation was canceled. > > Signed-off-by: Filipe Manana <fdmanana@xxxxxxxx> Reviewed-by: David Sterba <dsterba@xxxxxxxx>
