From: Junfeng Yang <yjf@stanford.edu>
To: linux-kernel@vger.kernel.org
Cc: mc@cs.stanford.edu
Subject: [CHECKER] 1 potential double unlock error
Date: Sun, 23 Mar 2003 16:29:19 -0800 (PST) [thread overview]
Message-ID: <Pine.GSO.4.44.0303231627290.25487-100000@elaine24.Stanford.EDU> (raw)
In-Reply-To: <Pine.GSO.4.44.0303231506070.21702-100000@elaine24.Stanford.EDU>
It's in net/3c505.c. Please help us to confirm or clarify. Thanks.
Junfeng
[BUG] if timeouts, will double unlock
/home/junfeng/linux-2.5.63/drivers/net/3c505.c:467:send_pcb:
ERROR:LOCK:432:467:double unlock &(*adapter).lock[TRANS: &(*adapter).lock,
locked->unlocked, /home/junfeng/linux-2.5.63/drivers/net/3c505.c,
send_pcb, 446]
set_hsf(dev, 0);
if (send_pcb_slow(dev->base_addr, pcb->command))
goto abort;
Start --->
spin_lock_irqsave(&adapter->lock, flags);
... DELETED 29 lines ...
if (elp_debug >= 1)
printk("%s: timeout waiting for PCB acknowledge (status
%02x)\n", dev->name, inb_status(dev->base_addr));
sti_abort:
Error --->
spin_unlock_irqrestore(&adapter->lock, flags);
abort:
adapter->send_pcb_semaphore = 0;
return FALSE;
next prev parent reply other threads:[~2003-03-24 0:18 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-04 11:12 [CHECKER] potential races in kernel/*.c mm/*.c net/*ipv4*.c Dawson Engler
2003-03-04 12:24 ` Hugh Dickins
2003-03-04 13:23 ` Martin Josefsson
2003-03-21 6:33 ` [CHECKER] potential dereference of user pointer errors Junfeng Yang
2003-03-21 21:44 ` Chris Wright
2003-03-21 21:58 ` Junfeng Yang
2003-03-21 22:06 ` Chris Wright
2003-03-21 22:08 ` Junfeng Yang
2003-03-21 22:15 ` Chris Wright
2003-03-22 20:49 ` Alan Cox
2003-03-22 20:19 ` Chris Wright
2003-03-21 23:55 ` Chris Wright
2003-03-27 8:07 ` Jan Kasprzak
2003-03-27 17:10 ` Chris Wright
2003-04-21 7:49 ` [CHECKER] Help Needed! Junfeng Yang
2003-04-21 21:26 ` Chris Wright
2003-04-26 2:18 ` [CHECKER] 30 potential dereference of user-pointer errors Junfeng Yang
2003-04-27 9:26 ` James Morris
2003-04-28 1:55 ` Junfeng Yang
2003-04-27 20:18 ` Nick Holloway
2003-04-27 21:14 ` Junfeng Yang
2003-04-27 21:29 ` Junfeng Yang
2003-04-28 6:43 ` [CHECKER] 3 potential user-pointer errors in drivers/usb/serial that can print out arbitrary kernel data Junfeng Yang
2003-04-29 7:25 ` Greg KH
2003-04-29 9:14 ` Junfeng Yang
2003-04-28 6:50 ` [CHECKER] 8 potential user-pointer errors that allow arbitrary writes to kernel Junfeng Yang
2003-04-28 12:49 ` Alan Cox
2003-04-28 19:11 ` Junfeng Yang
2003-04-29 0:02 ` [CHECKER] 5 potential user-pointer errors in write_proc Junfeng Yang
2003-04-29 7:26 ` [CHECKER] 30 potential dereference of user-pointer errors Greg KH
2003-03-22 0:15 ` [CHECKER] potential dereference of user pointer errors Chris Wright
2003-03-22 0:32 ` Greg KH
2003-03-22 0:47 ` Chris Wright
2003-03-22 1:00 ` Greg KH
2003-03-22 0:32 ` Chris Wright
2003-03-23 23:10 ` Junfeng Yang
2003-03-24 0:24 ` [CHECKER] 63 potential calling blocking functions with locks held errors Junfeng Yang
2003-03-24 12:35 ` [CHECKER] 8 potential calling blocking kmalloc(GFP_KERNEL) " Junfeng Yang
2003-03-24 0:29 ` Junfeng Yang [this message]
2003-03-24 9:07 ` [CHECKER] potential dereference of user pointer errors Jaroslav Kysela
2003-03-24 22:28 ` Raja R Harinath
2003-03-25 0:44 ` David S. Miller
2003-03-25 18:52 ` Raja R Harinath
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