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From: Felipe W Damasio <felipewd@terra.com.br>
To: Neil Horman <nhorman@redhat.com>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] close race condition in shared memory mapping/unmapping
Date: Mon, 13 Sep 2004 17:49:11 -0300	[thread overview]
Message-ID: <414607C7.4000801@terra.com.br> (raw)
In-Reply-To: <4146041F.2040106@redhat.com>

	Hi Neil,

Neil Horman wrote:
> +	down(&shm_ids.sem);
>  	shp = shm_lock(shmid);
>  	if(shp == NULL) {
> +		shm_unlock(shp);
> +		up(&shm_ids.sem);
>  		err = -EINVAL;
>  		goto out;
>  	}

	Trying to unlock a NULL pointer?

	Cheers,

Felipe

  reply	other threads:[~2004-09-13 20:52 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-09-13 20:33 [PATCH] close race condition in shared memory mapping/unmapping Neil Horman
2004-09-13 20:49 ` Felipe W Damasio [this message]
2004-09-13 20:54   ` Neil Horman
2004-09-13 21:01 ` Chris Wright
2004-09-14 11:48   ` Neil Horman

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