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RDMA/rtrs: Fix the last iu->buf leak in err path 

The last iu->buf will leak if ib_dma_mapping_error() fails.

Fixes: c0894b3ea6 ("RDMA/rtrs: core: lib functions shared between client and server modules")
Link: https://lore.kernel.org/r/1682384563-2-3-git-send-email-lizhijian@fujitsu.com
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Acked-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Li Zhijian 2023-04-25 01:02:42 +00:00 committed by Jason Gunthorpe
parent 5842d1d9c1
commit 3bf3a7c698
1 changed files with 3 additions and 1 deletions
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4
drivers/infiniband/ulp/rtrs/rtrs.c
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@ -37,8 +37,10 @@ struct rtrs_iu *rtrs_iu_alloc(u32 iu_num, size_t size, gfp_t gfp_mask,
goto err; goto err;
iu->dma_addr = ib_dma_map_single(dma_dev, iu->buf, size, dir); iu->dma_addr = ib_dma_map_single(dma_dev, iu->buf, size, dir);
if (ib_dma_mapping_error(dma_dev, iu->dma_addr)) if (ib_dma_mapping_error(dma_dev, iu->dma_addr)) {
kfree(iu->buf);
goto err; goto err;
}
iu->cqe.done = done; iu->cqe.done = done;
iu->size = size; iu->size = size;