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| author | Himanshu Madhani <hmadhani@marvell.com> | 2019-07-26 18:07:26 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-07-30 22:12:01 +0200 |
| commit | 5d328de64d89400dcf9911125844d8adc0db697f (patch) | |
| tree | 3fe58c55079a6a00d8a1059eed936dc3390c01a2 /drivers/scsi/qla2xxx/qla_bsg.c | |
| parent | scsi: mpt3sas: support target smid for [abort|query] task (diff) | |
| download | linux-5d328de64d89400dcf9911125844d8adc0db697f.tar.xz linux-5d328de64d89400dcf9911125844d8adc0db697f.zip | |
scsi: qla2xxx: Fix DMA unmap leak
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>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_bsg.c')
| -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 5441557b424b..11e420f8c493 100644 --- a/drivers/scsi/qla2xxx/qla_bsg.c +++ b/drivers/scsi/qla2xxx/qla_bsg.c @@ -341,6 +341,8 @@ qla2x00_process_els(struct 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; } @@ -348,6 +350,8 @@ qla2x00_process_els(struct 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; } |