linux-kernel - Re: [PATCH] never called printk statement in ide-taskfile.c::wait_drive_not

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-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20070606.023558.230059723.jet@gyve.org>
Date:	Wed, 06 Jun 2007 02:35:58 +0900 (JST)
From:	Masatake YAMATO <jet@...e.org>
To:	cebbert@...hat.com
Cc:	B.Zolnierkiewicz@...a.pw.edu.pl, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] never called printk statement in
 ide-taskfile.c::wait_drive_not_busy

> On 06/04/2007 10:21 PM, Masatake YAMATO wrote:
> > diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
> > index 30175c7..5e05311 100644
> > --- a/drivers/ide/ide-taskfile.c
> > +++ b/drivers/ide/ide-taskfile.c
> > @@ -249,7 +249,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive)
> >  	while (((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) && retries--)
> >  		udelay(10);
> >  
> > -	if (!retries)
> > +	if (retries < 0)
> 
> 	if (stat & BUSY_STAT)
> 
> >  		printk(KERN_ERR "%s: drive still BUSY!\n", drive->name);
> >  

Oh, yes.
Giving `retries' both roles: loop counter and condition flag for logging
may not good.


    for (retries = 0; retries < 100; retries++)
    {
	    if ((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT)
	       break;

	    udelay(10);
    }


    if (stat & BUSY_STAT)
	    printk(KERN_ERR "%s: drive still BUSY!\n", drive->name);

Masatake YAMATO
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/