Commit def4a6ff authored by Alexey Khoroshilov's avatar Alexey Khoroshilov Committed by Doug Ledford

IB/isert: do not ignore errors in dma_map_single()

There are several places, where errors in dma_map_single() are
ignored. The patch fixes them.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: default avatarAlexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: default avatarSagi Grimberg <sagi@grimberg.me>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 35493294
......@@ -1851,6 +1851,8 @@ isert_put_response(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
isert_cmd->pdu_buf_dma = ib_dma_map_single(ib_dev,
(void *)cmd->sense_buffer, pdu_len,
DMA_TO_DEVICE);
if (ib_dma_mapping_error(ib_dev, isert_cmd->pdu_buf_dma))
return -ENOMEM;
isert_cmd->pdu_buf_len = pdu_len;
tx_dsg->addr = isert_cmd->pdu_buf_dma;
......@@ -1978,6 +1980,8 @@ isert_put_reject(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
isert_cmd->pdu_buf_dma = ib_dma_map_single(ib_dev,
(void *)cmd->buf_ptr, ISCSI_HDR_LEN,
DMA_TO_DEVICE);
if (ib_dma_mapping_error(ib_dev, isert_cmd->pdu_buf_dma))
return -ENOMEM;
isert_cmd->pdu_buf_len = ISCSI_HDR_LEN;
tx_dsg->addr = isert_cmd->pdu_buf_dma;
tx_dsg->length = ISCSI_HDR_LEN;
......@@ -2018,6 +2022,8 @@ isert_put_text_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
isert_cmd->pdu_buf_dma = ib_dma_map_single(ib_dev,
txt_rsp_buf, txt_rsp_len, DMA_TO_DEVICE);
if (ib_dma_mapping_error(ib_dev, isert_cmd->pdu_buf_dma))
return -ENOMEM;
isert_cmd->pdu_buf_len = txt_rsp_len;
tx_dsg->addr = isert_cmd->pdu_buf_dma;
......
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