btrfs: fix error pointer dereference in btrfs_ioctl_rm_dev_v2()
If memdup_user() fails the error handing will crash when it tries to kfree() an error pointer. Just return directly because there is no cleanup required. Fixes: 1a15eb72 ("btrfs: use btrfs_get_dev_args_from_path in dev removal ioctls") Reviewed-by:Josef Bacik <josef@toxicpanda.com> Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
David Sterba <dsterba@suse.com> Signed-off-by:
David Sterba <dsterba@suse.com>
parent
daf87e95