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RDMA/erdma: Fix refcount leak in erdma_mmap

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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>
This commit is contained in:
Miaoqian Lin 2022-12-20 16:11:39 +04:00 committed by Leon Romanovsky
parent cab30a9835
commit ee84146c05
1 changed files with 3 additions and 1 deletions
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4
drivers/infiniband/hw/erdma/erdma_verbs.c
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@ -1110,12 +1110,14 @@ 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;
}