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xprtrdma: Do not leak an MW during a DMA map failure 

Based on code audit.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2016-06-29 13:53:02 -04:00 committed by Anna Schumaker
parent 505bbe64dd
commit 42fe28f607
2 changed files with 2 additions and 0 deletions
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1
net/sunrpc/xprtrdma/fmr_ops.c
View File

@ -257,6 +257,7 @@ fmr_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
out_dmamap_err:
pr_err("rpcrdma: failed to dma map sg %p sg_nents %u\n",
mw->mw_sg, mw->mw_nents);
rpcrdma_defer_mr_recovery(mw);
return -ENOMEM;
out_maperr:

1
net/sunrpc/xprtrdma/frwr_ops.c
View File

@ -438,6 +438,7 @@ frwr_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
out_dmamap_err:
pr_err("rpcrdma: failed to dma map sg %p sg_nents %u\n",
mw->mw_sg, mw->mw_nents);
rpcrdma_defer_mr_recovery(mw);
return -ENOMEM;
out_mapmr_err: