From: Tejun Heo <tj@kernel.org>
To: Jeff Garzik <jeff@garzik.org>,
IDE/ATA development list <linux-ide@vger.kernel.org>,
Chuck Ebbert <cebbert@redhat.com>,
Robert Hancock <hancockr@shaw.ca>, FUJITA Tomonori <fujita.tom>
Subject: [PATCH #upstream-fixes 2/2] libata: don't use on-stack sense buffer
Date: Mon, 02 Mar 2009 18:55:16 +0900 [thread overview]
Message-ID: <49ABAD04.90402@kernel.org> (raw)
In-Reply-To: <49ABAC96.3060109@kernel.org>
sense_buffer is used as DMA target and shouldn't be allocated on
stack. Use ap->sector_buf instead. This problem is spotted by Chuck
Ebbert.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Chuck Ebbert <cebbert@redhat.com>
---
drivers/ata/libata-eh.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index ce2ef04..009ccc7 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2901,7 +2901,7 @@ static int atapi_eh_clear_ua(struct ata_device *dev)
int i;
for (i = 0; i < ATA_EH_UA_TRIES; i++) {
- u8 sense_buffer[SCSI_SENSE_BUFFERSIZE];
+ u8 *sense_buffer = dev->link->ap->sector_buf;
u8 sense_key = 0;
unsigned int err_mask;
prev parent reply other threads:[~2009-03-02 9:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-02 9:53 [PATCH #upstream-fixes 1/2] libata: align ap->sector_buf Tejun Heo
2009-03-02 9:55 ` Tejun Heo [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=49ABAD04.90402@kernel.org \
--to=tj@kernel.org \
--cc=cebbert@redhat.com \
--cc=hancockr@shaw.ca \
--cc=jeff@garzik.org \
--cc=linux-ide@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).