Re: [PATCH] close race condition in shared memory mapping/unmapping
From: Felipe W Damasio
Date: Mon Sep 13 2004 - 15:53:17 EST
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
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