req->qpair and qpair->ctrlr are set at their initialization, and
hence we don't have to store ctrlr to req->user_buffer but we can
get ctrlr simply from req->qpair->ctrlr.
Besides, save a local variable by overwriting qpair when it is NULL.
This is also a small clean up.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I1cca763fbaae55079b38f7f16fcf779360232797
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2890
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Michael Haeuptle <michaelhaeuptle@gmail.com>
aacac0b433