smb: client: let destroy_mr_list() call list_del(&mr->list)

This makes the code clearer and will make further changes easier.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

Author: metze-samba

fs/smb/client/smbdirect.c

@@ -2363,6 +2363,7 @@ static void destroy_mr_list(struct smbdirect_socket *sc)
 				mr->sgt.nents, mr->dir);
 		ib_dereg_mr(mr->mr);
 		kfree(mr->sgt.sgl);
+		list_del(&mr->list);
 		kfree(mr);
 	}
 }