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authorRobert Jennings <rcj@linux.vnet.ibm.com>2009-01-22 14:40:09 -0500
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-02-10 11:15:17 -0500
commite637d553199e264327714da437e6c808f2f4b096 (patch)
tree34743d41b7dda0c6f307ac8056f6b167c3a40749 /drivers
parent4c098bcd55fad34dcf224bf8343db6a9ac58fc68 (diff)
[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')
-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 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,
432 sdev_printk(KERN_ERR, cmd->device, 432 sdev_printk(KERN_ERR, cmd->device,
433 "Can't allocate memory " 433 "Can't allocate memory "
434 "for indirect table\n"); 434 "for indirect table\n");
435 scsi_dma_unmap(cmd);
435 return 0; 436 return 0;
436 } 437 }
437 } 438 }