Commit ee84146c authored by Miaoqian Lin's avatar Miaoqian Lin Committed by Leon Romanovsky
Browse files

RDMA/erdma: Fix refcount leak in erdma_mmap 



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: 15505577 ("RDMA/erdma: Add verbs implementation")
Signed-off-by: default avatarMiaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20221220121139.1540564-1-linmq006@gmail.com


Acked-by: default avatarCheng Xu <chengyou@linux.alibaba.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent cab30a98

drivers/infiniband/hw/erdma/erdma_verbs.c

+3 −1
Original line number Diff line number Diff line
@@ -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;

}