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| Started by | Jiri Slaby <jslaby@suse.cz> |
|---|---|
| First post | 2015-07-28 12:20 +0200 |
| Last post | 2015-07-28 12:20 +0200 |
| Articles | 1 — 1 participant |
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[PATCH 3.12 043/124] hpsa: correct off-by-one sizing of chained SG block Jiri Slaby <jslaby@suse.cz> - 2015-07-28 12:20 +0200
| From | Jiri Slaby <jslaby@suse.cz> |
|---|---|
| Date | 2015-07-28 12:20 +0200 |
| Subject | [PATCH 3.12 043/124] hpsa: correct off-by-one sizing of chained SG block |
| Message-ID | <pRa9m-6eh-69@gated-at.bofh.it> |
From: Webb Scales <webbnh@hp.com>
3.12-stable review patch. If anyone has any objections, please let me know.
===============
commit 1a63ea6f244b10117601f96e7bde9f8d21ebe458 upstream.
Correct the size calculation of the chained SG block
Signed-off-by: Don Brace <don.brace@pmcs.com>
Signed-off-by: Webb Scales <webbnh@hp.com>
Reviewed-by: Stephen M. Cameron <stephenmcameron@gmail.com>
Reviewed-by: Don Brace <don.brace@pmcs.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/scsi/hpsa.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index f69a87b06c88..6a03bd550242 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -4280,11 +4280,11 @@ static void hpsa_find_board_params(struct ctlr_info *h)
h->max_cmd_sg_entries = 31;
if (h->maxsgentries > 512) {
h->max_cmd_sg_entries = 32;
- h->chainsize = h->maxsgentries - h->max_cmd_sg_entries + 1;
+ h->chainsize = h->maxsgentries - h->max_cmd_sg_entries;
h->maxsgentries--; /* save one for chain pointer */
} else {
- h->maxsgentries = 31; /* default to traditional values */
h->chainsize = 0;
+ h->maxsgentries = 31; /* default to traditional values */
}
/* Find out what task management functions are supported and cache */
--
2.4.6
--
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