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RDMA/rtrs: fix uninitialized symbol 'cnt' 

rtrs_clt_rdma_cq_direct returns an ninitialized value in cnt
if there is no session. This patch makes rtrs_clt_rdma_cq_direct
returns a negative value for block layer not to try again.

Fixes: 2958a995ed ("block/rnbd-clt: Support polling mode for IO latency optimization")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Link: https://lore.kernel.org/r/20210429092741.266533-1-gi-oh.kim@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Gioh Kim 2021-04-29 11:27:41 +02:00 committed by Jens Axboe
parent be4f361d69
commit c646790a1f
1 changed files with 2 additions and 1 deletions
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3
drivers/infiniband/ulp/rtrs/rtrs-clt.c
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@ -2896,7 +2896,8 @@ EXPORT_SYMBOL(rtrs_clt_request);
int rtrs_clt_rdma_cq_direct(struct rtrs_clt *clt, unsigned int index)
{
int cnt;
/* If no path, return -1 for block layer not to try again */
int cnt = -1;
struct rtrs_con *con;
struct rtrs_clt_sess *sess;
struct path_it it;