diff mbox series

[V3,07/18] RDMA/siw: Also goto out_sem_up if pin_user_pages returns 0

Message ID 20231027023328.30347-8-guoqing.jiang@linux.dev (mailing list archive)
State Superseded
Headers show
Series Cleanup for siw | expand

Commit Message

Guoqing Jiang Oct. 27, 2023, 2:33 a.m. UTC 
Since it is legitimate for pin_user_pages returns 0, which
means it might be dead loop here.

Acked-by: Bernard Metzler <bmt@zurich.ibm.com>
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 mbox series

Patch

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;