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authoradam radford <aradford@gmail.com>2009-05-12 01:55:55 +0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-05-15 20:24:59 +0400
commit7b14f58ad65f9d74e4273fb45360cfea824495aa (patch)
tree06d260917df5aa71bd255cec303f9147e45e9f00 /drivers/scsi/3w-xxxx.c
parent8454e9888cb0316dd296fd5d47c612248ed5e1d1 (diff)
downloadlinux-7b14f58ad65f9d74e4273fb45360cfea824495aa.tar.xz
[SCSI] 3w-xxxx: scsi_dma_unmap fix
This patch fixes the following regression that occurred during the scsi_dma_map()/unmap() changes when compiling with CONFIG_DMA_API_DEBUG=y : WARNING: at lib/dma-debug.c:496 check_unmap+0x142/0x542() Hardware name: 3w-xxxx 0000:02:02.0: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x0000000000000000] [size=36 bytes] Signed-off-by: Adam Radford <aradford@gmail.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/3w-xxxx.c')
-rw-r--r--drivers/scsi/3w-xxxx.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index c03f1d2c9e2e..faa0fcfed71e 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -6,7 +6,7 @@
Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Brad Strand <linux@3ware.com>
- Copyright (C) 1999-2007 3ware Inc.
+ Copyright (C) 1999-2009 3ware Inc.
Kernel compatiblity By: Andre Hedrick <andre@suse.com>
Non-Copyright (C) 2000 Andre Hedrick <andre@suse.com>
@@ -1294,7 +1294,8 @@ static void tw_unmap_scsi_data(struct pci_dev *pdev, struct scsi_cmnd *cmd)
{
dprintk(KERN_WARNING "3w-xxxx: tw_unmap_scsi_data()\n");
- scsi_dma_unmap(cmd);
+ if (cmd->SCp.phase == TW_PHASE_SGLIST)
+ scsi_dma_unmap(cmd);
} /* End tw_unmap_scsi_data() */
/* This function will reset a device extension */