[patch] bio-integrity: use hardware sectors instead of block layer sectors

[Dan Carpenter <error27@gmail.com>]

Smatch tagged this code as suspicious because we never use the
"nr_sectors" variable.  Looking at the code, I think we did intend to
use "nr_sectors" instead of "sectors" when we call
bio_integrity_mark_tail().

The difference between "sectors" and "nr_sectors" is that "sectors" is in
terms of 512 byte sectors and "nr_sectors" is in terms of hardware 
sectors.  They are only different for 4k sector devices.

Signed-off-by: Dan Carpenter <error27@gmail.com>
---
I'm only guessing as to the intent and I can't test this myself.  Please
handle with care.

diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index 612a5c3..ce65453 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -676,7 +676,7 @@ void bio_integrity_trim(struct bio *bio, unsigned int offset,
 	nr_sectors = bio_integrity_hw_sectors(bi, sectors);
 	bip->bip_sector = bip->bip_sector + offset;
 	bio_integrity_mark_head(bip, offset * bi->tuple_size);
-	bio_integrity_mark_tail(bip, sectors * bi->tuple_size);
+	bio_integrity_mark_tail(bip, nr_sectors * bi->tuple_size);
 }
 EXPORT_SYMBOL(bio_integrity_trim);