lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <1245424412-15106-1-git-send-email-jirislaby@gmail.com>
Date:	Fri, 19 Jun 2009 17:13:32 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	linux-driver@...gic.com
Cc:	davem@...emloft.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, Jiri Slaby <jirislaby@...il.com>
Subject: [PATCH 1/1] Net: qla3xxx, remove sleeping in atomic

Hi, we've found this sleep-inside-spinlock.

The fix below totally untested, please review carefully.

--

We cannot sleep in ql_reset_work under spinlock, unlock before sleep,
relock after.

Signed-off-by: Jiri Slaby <jirislaby@...il.com>
---
 drivers/net/qla3xxx.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c
index 8a823ec..bbc6d4d 100644
--- a/drivers/net/qla3xxx.c
+++ b/drivers/net/qla3xxx.c
@@ -3837,7 +3837,9 @@ static void ql_reset_work(struct work_struct *work)
 						      16) | ISP_CONTROL_RI));
 			}
 
+			spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
 			ssleep(1);
+			spin_lock_irqsave(&qdev->hw_lock, hw_flags);
 		} while (--max_wait_time);
 		spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
 
-- 
1.6.3.2
caught by stanse
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ