arch-linux-kernel/3.10.6-reset-superseed-xhci...

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2013-08-13 11:26:23 +02:00
[PATCH] SCSI: Don't attempt to send extended INQUIRY command if skip_vpd_pages is set
If a device has the skip_vpd_pages flag set we should simply fail the
scsi_get_vpd_page() call.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Stuart Foster <smf.linux@ntlworld.com>
Cc: stable@vger.kernel.org
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 3b1ea34..eaa808e 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -1031,6 +1031,9 @@ int scsi_get_vpd_page(struct scsi_device *sdev, u8 page, unsigned char *buf,
{
int i, result;
+ if (sdev->skip_vpd_pages)
+ goto fail;
+
/* Ask for all the pages supported by this device */
result = scsi_vpd_inquiry(sdev, buf, 0, buf_len);
if (result)