From: Miaoqian Lin <linmq006@xxxxxxxxx>
[ 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@xxxxxxxxx>
Link: https://lore.kernel.org/r/20221220121139.1540564-1-linmq006@xxxxxxxxx
Acked-by: Cheng Xu <chengyou@xxxxxxxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 5dab1e87975ba..9c30d78730aa1 100644
--- a/drivers/infiniband/hw/erdma/erdma_verbs.c
+++ b/drivers/infiniband/hw/erdma/erdma_verbs.c
@@ -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;
}
--
2.39.2
