From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit ee84146c05ad2316b9a7222d0ec4413e0bf30eeb ]
rdma_user_mmap_entry_get() take reference, we should release it when not need anymore, add the missing rdma_user_mmap_entry_put() in the error path to fix it.
Fixes: 155055771704 ("RDMA/erdma: Add verbs implementation") Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20221220121139.1540564-1-linmq006@gmail.com Acked-by: Cheng Xu chengyou@linux.alibaba.com Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/hw/erdma/erdma_verbs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/erdma/erdma_verbs.c b/drivers/infiniband/hw/erdma/erdma_verbs.c index 62be98e2b9414..19c69ea1b0c0f 100644 --- a/drivers/infiniband/hw/erdma/erdma_verbs.c +++ b/drivers/infiniband/hw/erdma/erdma_verbs.c @@ -1089,12 +1089,14 @@ int erdma_mmap(struct ib_ucontext *ctx, struct vm_area_struct *vma) prot = pgprot_device(vma->vm_page_prot); break; default: - return -EINVAL; + err = -EINVAL; + goto put_entry; }
err = rdma_user_mmap_io(ctx, vma, PFN_DOWN(entry->address), PAGE_SIZE, prot, rdma_entry);
+put_entry: rdma_user_mmap_entry_put(rdma_entry); return err; }