From: Li Zhijian lizhijian@fujitsu.com
[ Upstream commit 3bf3a7c6985c625f64e73baefdaa36f1c2045a29 ]
The last iu->buf will leak if ib_dma_mapping_error() fails.
Fixes: c0894b3ea69d ("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.co... 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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/ulp/rtrs/rtrs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/ulp/rtrs/rtrs.c b/drivers/infiniband/ulp/rtrs/rtrs.c index 4bf9d868cc522..3696f367ff515 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs.c +++ b/drivers/infiniband/ulp/rtrs/rtrs.c @@ -37,8 +37,10 @@ struct rtrs_iu *rtrs_iu_alloc(u32 iu_num, size_t size, gfp_t gfp_mask, goto err;
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; + }
iu->cqe.done = done; iu->size = size;