diff options
| author | Himanshu Madhani <hmadhani@marvell.com> | 2019-07-26 09:07:26 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-21 10:42:16 +0100 |
| commit | 0f37bd0900e5a52fc34473d0723045f3ade496d8 (patch) | |
| tree | 27fd91d6241fe7ff121d1458960daa7d87957bc6 /drivers/scsi/qla2xxx | |
| parent | af9b59cb7013b888d005714a7ea4d21b7485939e (diff) | |
scsi: qla2xxx: Fix DMA unmap leak
[ Upstream commit 5d328de64d89400dcf9911125844d8adc0db697f ]
With debug kernel we see following wanings indicating memory leak.
[28809.523959] WARNING: CPU: 3 PID: 6790 at lib/dma-debug.c:978
dma_debug_device_change+0x166/0x1d0
[28809.523964] pci 0000:0c:00.6: DMA-API: device driver has pending DMA
allocations while released from device [count=5]
[28809.523964] One of leaked entries details: [device
address=0x00000002aefe4000] [size=8208 bytes] [mapped with DMA_BIDIRECTIONAL]
[mapped as coherent]
Fix this by unmapping DMA memory.
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/scsi/qla2xxx')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_bsg.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c index 33e4dceb895f..e7db95d442de 100644 --- a/drivers/scsi/qla2xxx/qla_bsg.c +++ b/drivers/scsi/qla2xxx/qla_bsg.c @@ -336,6 +336,8 @@ qla2x00_process_els(struct fc_bsg_job *bsg_job) dma_map_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list, bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE); if (!req_sg_cnt) { + dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list, + bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE); rval = -ENOMEM; goto done_free_fcport; } @@ -343,6 +345,8 @@ qla2x00_process_els(struct fc_bsg_job *bsg_job) rsp_sg_cnt = dma_map_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list, bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE); if (!rsp_sg_cnt) { + dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list, + bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE); rval = -ENOMEM; goto done_free_fcport; } |