RDMA/rtrs: Fix the problem of variable not initialized fully

[ Upstream commit c5930a1a ]

No functionality change. The variable which is not initialized fully
will introduce potential risks.

Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Link: https://lore.kernel.org/r/20230919020806.534183-1-yanjun.zhu@intel.com


Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>