USB: Fix option_ms regression in 2.6.31-rc2

Commit 32ebbe7b6ad44ae9c276419710b56de6ba705303 which filters the
SCSI REZERO command in option_ms based on a SCSI INQUIRY with a vendor
of Option breaks my Option Icon 225 (0af0:6971). This device returns a
vendor of ZCOPTION for the ZeroCD device. The following trivial patch
fixes things for me.

Signed-Off-By: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/storage/option_ms.c b/drivers/usb/storage/option_ms.c
index d41cc0a970f79a147660da239bdc014612396354..773a5cd38c5aa7773f5b7f1837351a8945b3f084 100644 (file)
--- a/drivers/usb/storage/option_ms.c
+++ b/drivers/usb/storage/option_ms.c
@@ -118,6 +118,9 @@ static int option_inquiry(struct us_data *us)
 
        result = memcmp(buffer+8, "Option", 6);
 
+       if (result != 0)
+               result = memcmp(buffer+8, "ZCOPTION", 8);
+
        /* Read the CSW */
        usb_stor_bulk_transfer_buf(us,
                        us->recv_bulk_pipe,