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authorRobert Jennings <rcj@linux.vnet.ibm.com>2009-01-22 13:40:09 -0600
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-02-10 11:15:17 -0500
commite637d553199e264327714da437e6c808f2f4b096 (patch)
tree34743d41b7dda0c6f307ac8056f6b167c3a40749 /drivers/scsi
parent4c098bcd55fad34dcf224bf8343db6a9ac58fc68 (diff)
downloadop-kernel-dev-e637d553199e264327714da437e6c808f2f4b096.zip
op-kernel-dev-e637d553199e264327714da437e6c808f2f4b096.tar.gz
[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.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 74d07d1..c9aa761 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;
}
}
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