From 6d73c8514da241c6b1b8d710a6294786604d7142 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 23 Feb 2006 02:03:16 +0100 Subject: [SCSI] scsi_lib: fix recognition of cache type of Initio SBP-2 bridges Regardless what mode page was asked for, Initio INIC-14x0 and INIC-2430 always return page 6 without mode page headers. Try to recognise this as a special case in scsi_mode_sense and setting the mode sense headers accordingly. Signed-off-by: Al Viro Signed-off-by: James Bottomley --- drivers/scsi/sd.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/scsi/sd.c') diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 76b4d14c0b3..31c9685ebc5 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1333,6 +1333,12 @@ sd_read_cache_type(struct scsi_disk *sdkp, char *diskname, if (!scsi_status_is_good(res)) goto bad_sense; + if (!data.header_length) { + modepage = 6; + printk(KERN_ERR "%s: missing header in MODE_SENSE response\n", + diskname); + } + /* that went OK, now ask for the proper length */ len = data.length; -- cgit v1.2.3