From: Guoqing Jiang <guoqing.jiang@linux.dev>
To: bmt@zurich.ibm.com, jgg@ziepe.ca, leon@kernel.org
Cc: linux-rdma@vger.kernel.org
Subject: [PATCH V2 07/20] RDMA/siw: Also goto out_sem_up if pin_user_pages returns 0
Date: Fri, 13 Oct 2023 10:00:40 +0800 [thread overview]
Message-ID: <20231013020053.2120-8-guoqing.jiang@linux.dev> (raw)
In-Reply-To: <20231013020053.2120-1-guoqing.jiang@linux.dev>
Since it is legitimate for pin_user_pages returns 0, which
means it might be dead loop here.
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
---
drivers/infiniband/sw/siw/siw_mem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/sw/siw/siw_mem.c b/drivers/infiniband/sw/siw/siw_mem.c
index c5f7f1669d09..92c5776a9eed 100644
--- a/drivers/infiniband/sw/siw/siw_mem.c
+++ b/drivers/infiniband/sw/siw/siw_mem.c
@@ -423,7 +423,7 @@ struct siw_umem *siw_umem_get(u64 start, u64 len, bool writable)
while (nents) {
rv = pin_user_pages(first_page_va, nents, foll_flags,
plist);
- if (rv < 0)
+ if (rv <= 0)
goto out_sem_up;
umem->num_pages += rv;
--
2.35.3
next prev parent reply other threads:[~2023-10-13 2:01 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-13 2:00 [PATCH V2 00/20] Cleanup for siw Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 01/20] RDMA/siw: Introduce siw_get_page Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 02/20] RDMA/siw: Introduce siw_srx_update_skb Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 03/20] RDMA/siw: Use iov.iov_len in kernel_sendmsg Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 04/20] RDMA/siw: Remove goto lable in siw_mmap Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 05/20] RDMA/siw: Remove rcu from siw_qp Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 06/20] RDMA/siw: No need to check term_info.valid before call siw_send_terminate Guoqing Jiang
2023-10-13 2:00 ` Guoqing Jiang [this message]
2023-10-13 2:00 ` [PATCH V2 08/20] RDMA/siw: Factor out siw_generic_rx helper Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 09/20] RDMA/siw: Introduce SIW_STAG_MAX_INDEX Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 10/20] RDMA/siw: Add one parameter to siw_destroy_cpulist Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 11/20] RDMA/siw: Introduce siw_cep_set_free_and_put Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 12/20] RDMA/siw: Introduce siw_free_cm_id Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 13/20] RDMA/siw: Simplify siw_qp_id2obj Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 14/20] RDMA/siw: Simplify siw_mem_id2obj Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 15/20] RDMA/siw: Cleanup siw_accept Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 16/20] RDMA/siw: Remove siw_sk_assign_cm_upcalls Guoqing Jiang
2023-10-13 2:00 ` [PATCH V2 17/20] RDMA/siw: Fix typo Guoqing Jiang
2023-10-25 13:22 ` Bernard Metzler
2023-10-13 2:00 ` [PATCH V2 18/20] RDMA/siw: Only check attrs->cap.max_send_wr in siw_create_qp Guoqing Jiang
2023-10-25 13:27 ` Bernard Metzler
2023-10-26 6:55 ` Guoqing Jiang
2023-10-26 14:00 ` Bernard Metzler
2023-10-13 2:00 ` [PATCH V2 19/20] RDMA/siw: Introduce siw_destroy_cep_sock Guoqing Jiang
2023-10-25 13:28 ` Bernard Metzler
2023-10-13 2:00 ` [PATCH V2 20/20] RDMA/siw: Update comments for siw_qp_sq_process Guoqing Jiang
2023-10-25 13:29 ` Bernard Metzler
2023-10-24 14:09 ` [PATCH V2 00/20] Cleanup for siw Leon Romanovsky
2023-10-24 17:22 ` Bernard Metzler
2023-10-24 18:19 ` Leon Romanovsky
2023-10-25 13:37 ` Bernard Metzler
2023-10-26 7:02 ` Guoqing Jiang
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