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From: roel kluin <roel.kluin@gmail.com>
To: Andreas Schwab <schwab@suse.de>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org
Subject: Re: powerpc: hv{cs, si}_close() both unsigned hp->count and hvcsd->open_count cannot be negative
Date: Sat, 29 Nov 2008 08:27:16 -0500	[thread overview]
Message-ID: <49314334.6060609@gmail.com> (raw)
In-Reply-To: <jey6z24rqw.fsf@sykes.suse.de>

Andreas Schwab wrote:
> roel kluin <roel.kluin@gmail.com> writes:
> 
>> -	if (--hvcsd->open_count == 0) {
>> +	if (hvcsd->open_count == 1) {
>> +		hvcsd->open_count--;
> 
> This is not the same.

I think you're missing that I also decrement if (hvcsd->open_count > 1)
If not, please elaborate.

> 
>> -	if (--hp->count == 0) {
>> +	if (hp->count == 1) {
>> +		hp->count--;
> 
> Likewise.

Same here.

Roel

WARNING: multiple messages have this Message-ID (diff)
From: roel kluin <roel.kluin@gmail.com>
To: Andreas Schwab <schwab@suse.de>
Cc: benh@kernel.crashing.org, linuxppc-dev@ozlabs.org,
	linux-kernel@vger.kernel.org
Subject: Re: powerpc: hv{cs,si}_close() both unsigned hp->count and hvcsd->open_count cannot be negative
Date: Sat, 29 Nov 2008 08:27:16 -0500	[thread overview]
Message-ID: <49314334.6060609@gmail.com> (raw)
In-Reply-To: <jey6z24rqw.fsf@sykes.suse.de>

Andreas Schwab wrote:
> roel kluin <roel.kluin@gmail.com> writes:
> 
>> -	if (--hvcsd->open_count == 0) {
>> +	if (hvcsd->open_count == 1) {
>> +		hvcsd->open_count--;
> 
> This is not the same.

I think you're missing that I also decrement if (hvcsd->open_count > 1)
If not, please elaborate.

> 
>> -	if (--hp->count == 0) {
>> +	if (hp->count == 1) {
>> +		hp->count--;
> 
> Likewise.

Same here.

Roel

  reply	other threads:[~2008-11-29 13:27 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-29 10:57 powerpc: hv{cs, si}_close() both unsigned hp->count and hvcsd->open_count cannot be negative roel kluin
2008-11-29 10:57 ` powerpc: hv{cs,si}_close() " roel kluin
2008-11-29 12:54 ` powerpc: hv{cs, si}_close() " Andreas Schwab
2008-11-29 12:54   ` powerpc: hv{cs,si}_close() " Andreas Schwab
2008-11-29 13:27   ` roel kluin [this message]
2008-11-29 13:27     ` roel kluin
2008-11-29 15:01     ` powerpc: hv{cs, si}_close() " Andreas Schwab
2008-11-29 15:01       ` powerpc: hv{cs,si}_close() " Andreas Schwab
2008-11-29 23:20 ` powerpc: hv{cs, si}_close() " Paul Mackerras
2008-11-29 23:20   ` Paul Mackerras
2008-11-30 11:16   ` Alan Cox
2008-11-30 11:16     ` Alan Cox
2008-11-30 21:23     ` Paul Mackerras
2008-11-30 21:23       ` Paul Mackerras

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