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qcacmn: Check return value of nbuf_map in tx_ipa_smmu_map

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Currently the return status of qdf_nbuf_map_single()
is not checked in dp_tx_ipa_uc_attach(). This change adds
the check to ensure that each nbuf in the TX buff pool,
is successfully mapped before providing the nbuf
to be IPA SMMU mapped.

Change-Id: Ic40479af8f2eaa2ced87b20a25250844e5e146bf
CRs-Fixed: 3629564
This commit is contained in:
Namita Nair
2023-09-28 16:40:25 -07:00
committed by Rahul Choudhary
parent cfbb3005ef
commit 552f04acdf
3 changed files with 48 additions and 50 deletions
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13
dp/wifi3.0/dp_ipa.c
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@@ -1511,8 +1511,15 @@ static int dp_tx_ipa_uc_attach(struct dp_soc *soc, struct dp_pdev *pdev)
break;
}
qdf_nbuf_map_single(soc->osdev, nbuf,
QDF_DMA_BIDIRECTIONAL);
retval = qdf_nbuf_map_single(soc->osdev, nbuf,
QDF_DMA_BIDIRECTIONAL);
if (qdf_unlikely(retval != QDF_STATUS_SUCCESS)) {
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"%s: nbuf map failed", __func__);
qdf_nbuf_free(nbuf);
retval = -EFAULT;
break;
}
buffer_paddr = qdf_nbuf_get_frag_paddr(nbuf, 0);
qdf_mem_dp_tx_skb_cnt_inc();
qdf_mem_dp_tx_skb_inc(qdf_nbuf_get_end_offset(nbuf));
@@ -1574,6 +1581,8 @@ int dp_ipa_uc_attach(struct dp_soc *soc, struct dp_pdev *pdev)
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"%s: DP IPA UC TX attach fail code %d",
__func__, error);
if (error == -EFAULT)
dp_tx_ipa_uc_detach(soc, pdev);
return error;
}