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[SCSI] hpsa: fixup DMA address before freeing. 

Some low bits might have been set by the driver, causing
a message like this to come out:

 [   13.288062] ------------[ cut here ]------------
 [   13.293211] WARNING: at lib/dma-debug.c:803 check_unmap+0x1a1/0x654()
 [   13.300387] Hardware name: ProLiant DL180 G6
 [   13.305335] hpsa 0000:06:00.0: DMA-API: device driver tries to free
 DMA memory it has not allocated [device address=0x000000007f81e001]
 [size=640 bytes]

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Stephen M. Cameron 2011-01-06 14:47:53 -06:00 committed by James Bottomley
parent b03a7771c8
commit d896f3f3d1
2 changed files with 2 additions and 1 deletions
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2
drivers/scsi/hpsa.c
View File

@ -2267,7 +2267,7 @@ static void cmd_special_free(struct ctlr_info *h, struct CommandList *c)
pci_free_consistent(h->pdev, sizeof(*c->err_info),
c->err_info, (dma_addr_t) temp64.val);
pci_free_consistent(h->pdev, sizeof(*c),
c, (dma_addr_t) c->busaddr);
c, (dma_addr_t) (c->busaddr & DIRECT_LOOKUP_MASK));
}
#ifdef CONFIG_COMPAT

1
drivers/scsi/hpsa_cmd.h
View File

@ -265,6 +265,7 @@ struct ErrorInfo {
#define DIRECT_LOOKUP_SHIFT 5
#define DIRECT_LOOKUP_BIT 0x10
#define DIRECT_LOOKUP_MASK (~((1 << DIRECT_LOOKUP_SHIFT) - 1))
#define HPSA_ERROR_BIT 0x02
struct ctlr_info; /* defined in hpsa.h */