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mlx4_core: Propagate MR deregistration failures to caller

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MR deregistration fails when memory windows are bound to the MR.
Handle such failures by propagating them to the caller ULP.

Signed-off-by: Haggai Eran <[email protected]>
Signed-off-by: Shani Michaeli <[email protected]>
Signed-off-by: Or Gerlitz <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>
This commit is contained in:
Shani Michaeli 2013-02-06 16:19:09 +00:00 • committed by Roland Dreier
commit 6108372070
4 changed files with 33 additions and 15 deletions
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13
drivers/infiniband/hw/mlx4/mr.c
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@ -68,7 +68,7 @@ struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc)
return &mr->ibmr;
err_mr:
mlx4_mr_free(to_mdev(pd->device)->dev, &mr->mmr);
(void) mlx4_mr_free(to_mdev(pd->device)->dev, &mr->mmr);
err_free:
kfree(mr);
@ -163,7 +163,7 @@ struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
return &mr->ibmr;
err_mr:
mlx4_mr_free(to_mdev(pd->device)->dev, &mr->mmr);
(void) mlx4_mr_free(to_mdev(pd->device)->dev, &mr->mmr);
err_umem:
ib_umem_release(mr->umem);
@ -177,8 +177,11 @@ err_free:
int mlx4_ib_dereg_mr(struct ib_mr *ibmr)
{
struct mlx4_ib_mr *mr = to_mmr(ibmr);
int ret;
mlx4_mr_free(to_mdev(ibmr->device)->dev, &mr->mmr);
ret = mlx4_mr_free(to_mdev(ibmr->device)->dev, &mr->mmr);
if (ret)
return ret;
if (mr->umem)
ib_umem_release(mr->umem);
kfree(mr);
@ -212,7 +215,7 @@ struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd,
return &mr->ibmr;
err_mr:
mlx4_mr_free(dev->dev, &mr->mmr);
(void) mlx4_mr_free(dev->dev, &mr->mmr);
err_free:
kfree(mr);
@ -291,7 +294,7 @@ struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int acc,
return &fmr->ibfmr;
err_mr:
mlx4_mr_free(to_mdev(pd->device)->dev, &fmr->mfmr.mr);
(void) mlx4_mr_free(to_mdev(pd->device)->dev, &fmr->mfmr.mr);
err_free:
kfree(fmr);