[PATCH -next] RDMA/hns: Fix return in hns_roce_rereg_user_mr()
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STALE1881d
LANDED
From: YueHaibing <hidden>
Date: 2021-08-04 12:59:51
Also in:
lkml
Subsystem:
hisilicon roce driver, infiniband subsystem, the rest · Maintainers:
Chengchang Tang, Junxian Huang, Jason Gunthorpe, Leon Romanovsky, Linus Torvalds
Landed in mainline as c4c7d7a43246 on 2021-08-19.
If re-registering an MR in hns_roce_rereg_user_mr(), we should
return NULL instead of pass 0 to ERR_PTR.
Fixes: 4e9fc1dae2a9 ("RDMA/hns: Optimize the MR registration process")
Signed-off-by: YueHaibing <redacted>
---
drivers/infiniband/hw/hns/hns_roce_mr.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c
index 006c84bb3f9f..7089ac780291 100644
--- a/drivers/infiniband/hw/hns/hns_roce_mr.c
+++ b/drivers/infiniband/hw/hns/hns_roce_mr.c@@ -352,7 +352,9 @@ struct ib_mr *hns_roce_rereg_user_mr(struct ib_mr *ibmr, int flags, u64 start, free_cmd_mbox: hns_roce_free_cmd_mailbox(hr_dev, mailbox); - return ERR_PTR(ret); + if (ret) + return ERR_PTR(ret); + return NULL; } int hns_roce_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata)
--
2.17.1