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| author | Robert Jennings <rcj@linux.vnet.ibm.com> | 2009-01-22 13:40:09 -0600 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-02-10 11:15:17 -0500 |
| commit | e637d553199e264327714da437e6c808f2f4b096 (patch) | |
| tree | 34743d41b7dda0c6f307ac8056f6b167c3a40749 /drivers/scsi | |
| parent | 4c098bcd55fad34dcf224bf8343db6a9ac58fc68 (diff) | |
| download | lwn-e637d553199e264327714da437e6c808f2f4b096.tar.gz lwn-e637d553199e264327714da437e6c808f2f4b096.zip | |
[SCSI] ibmvscsi: Correct DMA mapping leak
The ibmvscsi client driver is not unmapping the SCSI command after
encountering a DMA mapping error while trying to map an indirect
scattergather list for the event pool. This leads to a leak of DMA
entitlement that could result in the device failing future DMA operations
in a CMO environment.
Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvscsi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index 74d07d137dae..c9aa7611e408 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -432,6 +432,7 @@ static int map_sg_data(struct scsi_cmnd *cmd, sdev_printk(KERN_ERR, cmd->device, "Can't allocate memory " "for indirect table\n"); + scsi_dma_unmap(cmd); return 0; } } |